Home / 113,319,218.80-169,726,885.80-87,677,081.20

Finding the Fourth Proportional to 113,319,218.80, 169,726,885.80 and 87,677,081.20

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Solution

The fourth proportional to 113,319,218.80, 169,726,885.80 and 87,677,081.20 is: 131,320,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,319,218.80 : 169,726,885.80 = 87,677,081.20 : x
  2. Step 2: Convert to fraction form
    113,319,218.80/169,726,885.80 = 87,677,081.20/x
  3. Step 3: Cross multiply
    113,319,218.80x = 169,726,885.80 × 87,677,081.20
  4. Step 4: Simplify right side
    113,319,218.80x = 14,881,157,948,109,728
  5. Step 5: Solve for x
    x = 14,881,157,948,109,728/113,319,218.80
  6. Step 6: Final answer
    x = 131,320,689.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.