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Finding the Fourth Proportional to 123,527.40, 185,751.90 and 103,252.20

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Solution

The fourth proportional to 123,527.40, 185,751.90 and 103,252.20 is: 155,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,527.40 : 185,751.90 = 103,252.20 : x
  2. Step 2: Convert to fraction form
    123,527.40/185,751.90 = 103,252.20/x
  3. Step 3: Cross multiply
    123,527.40x = 185,751.90 × 103,252.20
  4. Step 4: Simplify right side
    123,527.40x = 19,179,292,329.18
  5. Step 5: Solve for x
    x = 19,179,292,329.18/123,527.40
  6. Step 6: Final answer
    x = 155,263.47

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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.