Home / 112,551.28-155,247.60-72,201.16

Finding the Fourth Proportional to 112,551.28, 155,247.60 and 72,201.16

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Solution

The fourth proportional to 112,551.28, 155,247.60 and 72,201.16 is: 99,590.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,551.28 : 155,247.60 = 72,201.16 : x
  2. Step 2: Convert to fraction form
    112,551.28/155,247.60 = 72,201.16/x
  3. Step 3: Cross multiply
    112,551.28x = 155,247.60 × 72,201.16
  4. Step 4: Simplify right side
    112,551.28x = 11,209,056,807.22
  5. Step 5: Solve for x
    x = 11,209,056,807.22/112,551.28
  6. Step 6: Final answer
    x = 99,590.66

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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.