Home / 105,591.60-145,716.40-63,150.13

Finding the Fourth Proportional to 105,591.60, 145,716.40 and 63,150.13

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Solution

The fourth proportional to 105,591.60, 145,716.40 and 63,150.13 is: 87,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,591.60 : 145,716.40 = 63,150.13 : x
  2. Step 2: Convert to fraction form
    105,591.60/145,716.40 = 63,150.13/x
  3. Step 3: Cross multiply
    105,591.60x = 145,716.40 × 63,150.13
  4. Step 4: Simplify right side
    105,591.60x = 9,202,008,874.55
  5. Step 5: Solve for x
    x = 9,202,008,874.55/105,591.60
  6. Step 6: Final answer
    x = 87,147.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.