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Finding the Fourth Proportional to 124,688.80, 187,033.20 and 102,527.20

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Solution

The fourth proportional to 124,688.80, 187,033.20 and 102,527.20 is: 153,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,688.80 : 187,033.20 = 102,527.20 : x
  2. Step 2: Convert to fraction form
    124,688.80/187,033.20 = 102,527.20/x
  3. Step 3: Cross multiply
    124,688.80x = 187,033.20 × 102,527.20
  4. Step 4: Simplify right side
    124,688.80x = 19,175,990,303.04
  5. Step 5: Solve for x
    x = 19,175,990,303.04/124,688.80
  6. Step 6: Final answer
    x = 153,790.80

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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.