Home / 103,618.90-155,428.35-37,061.20

Finding the Fourth Proportional to 103,618.90, 155,428.35 and 37,061.20

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Solution

The fourth proportional to 103,618.90, 155,428.35 and 37,061.20 is: 55,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.90 : 155,428.35 = 37,061.20 : x
  2. Step 2: Convert to fraction form
    103,618.90/155,428.35 = 37,061.20/x
  3. Step 3: Cross multiply
    103,618.90x = 155,428.35 × 37,061.20
  4. Step 4: Simplify right side
    103,618.90x = 5,760,361,165.02
  5. Step 5: Solve for x
    x = 5,760,361,165.02/103,618.90
  6. Step 6: Final answer
    x = 55,591.80

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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.