Home / 454,098.86-681,146.40-138,554.72

Finding the Fourth Proportional to 454,098.86, 681,146.40 and 138,554.72

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Solution

The fourth proportional to 454,098.86, 681,146.40 and 138,554.72 is: 207,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,098.86 : 681,146.40 = 138,554.72 : x
  2. Step 2: Convert to fraction form
    454,098.86/681,146.40 = 138,554.72/x
  3. Step 3: Cross multiply
    454,098.86x = 681,146.40 × 138,554.72
  4. Step 4: Simplify right side
    454,098.86x = 94,376,048,731.01
  5. Step 5: Solve for x
    x = 94,376,048,731.01/454,098.86
  6. Step 6: Final answer
    x = 207,831.50

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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.