Home / 103,929.32-155,828.90-43,926.78

Finding the Fourth Proportional to 103,929.32, 155,828.90 and 43,926.78

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Solution

The fourth proportional to 103,929.32, 155,828.90 and 43,926.78 is: 65,862.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,929.32 : 155,828.90 = 43,926.78 : x
  2. Step 2: Convert to fraction form
    103,929.32/155,828.90 = 43,926.78/x
  3. Step 3: Cross multiply
    103,929.32x = 155,828.90 × 43,926.78
  4. Step 4: Simplify right side
    103,929.32x = 6,845,061,807.94
  5. Step 5: Solve for x
    x = 6,845,061,807.94/103,929.32
  6. Step 6: Final answer
    x = 65,862.66

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1.5x scale

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.