Home / 138,625.07-191,354.45-107,937.50

Finding the Fourth Proportional to 138,625.07, 191,354.45 and 107,937.50

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Solution

The fourth proportional to 138,625.07, 191,354.45 and 107,937.50 is: 148,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,625.07 : 191,354.45 = 107,937.50 : x
  2. Step 2: Convert to fraction form
    138,625.07/191,354.45 = 107,937.50/x
  3. Step 3: Cross multiply
    138,625.07x = 191,354.45 × 107,937.50
  4. Step 4: Simplify right side
    138,625.07x = 20,654,319,450.42
  5. Step 5: Solve for x
    x = 20,654,319,450.42/138,625.07
  6. Step 6: Final answer
    x = 148,994.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.