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Finding the Fourth Proportional to 124,777.10, 187,283.10 and 65,655.20

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Solution

The fourth proportional to 124,777.10, 187,283.10 and 65,655.20 is: 98,544.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,777.10 : 187,283.10 = 65,655.20 : x
  2. Step 2: Convert to fraction form
    124,777.10/187,283.10 = 65,655.20/x
  3. Step 3: Cross multiply
    124,777.10x = 187,283.10 × 65,655.20
  4. Step 4: Simplify right side
    124,777.10x = 12,296,109,387.12
  5. Step 5: Solve for x
    x = 12,296,109,387.12/124,777.10
  6. Step 6: Final answer
    x = 98,544.60

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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.