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Finding the Fourth Proportional to 123,887.60, 185,831.40 and 45,004.40

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Solution

The fourth proportional to 123,887.60, 185,831.40 and 45,004.40 is: 67,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,887.60 : 185,831.40 = 45,004.40 : x
  2. Step 2: Convert to fraction form
    123,887.60/185,831.40 = 45,004.40/x
  3. Step 3: Cross multiply
    123,887.60x = 185,831.40 × 45,004.40
  4. Step 4: Simplify right side
    123,887.60x = 8,363,230,658.16
  5. Step 5: Solve for x
    x = 8,363,230,658.16/123,887.60
  6. Step 6: Final answer
    x = 67,506.60

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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.