Home / 103,549.60-155,225.95-66,004.28

Finding the Fourth Proportional to 103,549.60, 155,225.95 and 66,004.28

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Solution

The fourth proportional to 103,549.60, 155,225.95 and 66,004.28 is: 98,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,549.60 : 155,225.95 = 66,004.28 : x
  2. Step 2: Convert to fraction form
    103,549.60/155,225.95 = 66,004.28/x
  3. Step 3: Cross multiply
    103,549.60x = 155,225.95 × 66,004.28
  4. Step 4: Simplify right side
    103,549.60x = 10,245,576,125.93
  5. Step 5: Solve for x
    x = 10,245,576,125.93/103,549.60
  6. Step 6: Final answer
    x = 98,943.66

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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.