Home / 134,877.20-202,315.80-72,669.20

Finding the Fourth Proportional to 134,877.20, 202,315.80 and 72,669.20

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Solution

The fourth proportional to 134,877.20, 202,315.80 and 72,669.20 is: 109,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,877.20 : 202,315.80 = 72,669.20 : x
  2. Step 2: Convert to fraction form
    134,877.20/202,315.80 = 72,669.20/x
  3. Step 3: Cross multiply
    134,877.20x = 202,315.80 × 72,669.20
  4. Step 4: Simplify right side
    134,877.20x = 14,702,127,333.36
  5. Step 5: Solve for x
    x = 14,702,127,333.36/134,877.20
  6. Step 6: Final answer
    x = 109,003.80

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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.