Home / 103,549.47-155,225.78-66,004.15

Finding the Fourth Proportional to 103,549.47, 155,225.78 and 66,004.15

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Solution

The fourth proportional to 103,549.47, 155,225.78 and 66,004.15 is: 98,943.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,549.47 : 155,225.78 = 66,004.15 : x
  2. Step 2: Convert to fraction form
    103,549.47/155,225.78 = 66,004.15/x
  3. Step 3: Cross multiply
    103,549.47x = 155,225.78 × 66,004.15
  4. Step 4: Simplify right side
    103,549.47x = 10,245,545,666.99
  5. Step 5: Solve for x
    x = 10,245,545,666.99/103,549.47
  6. Step 6: Final answer
    x = 98,943.49

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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.