Home / 103,715.13-155,441.48-66,260.73

Finding the Fourth Proportional to 103,715.13, 155,441.48 and 66,260.73

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Solution

The fourth proportional to 103,715.13, 155,441.48 and 66,260.73 is: 99,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,715.13 : 155,441.48 = 66,260.73 : x
  2. Step 2: Convert to fraction form
    103,715.13/155,441.48 = 66,260.73/x
  3. Step 3: Cross multiply
    103,715.13x = 155,441.48 × 66,260.73
  4. Step 4: Simplify right side
    103,715.13x = 10,299,665,605.78
  5. Step 5: Solve for x
    x = 10,299,665,605.78/103,715.13
  6. Step 6: Final answer
    x = 99,307.26

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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.