Home / 112,917.60-155,754.72-72,561.92

Finding the Fourth Proportional to 112,917.60, 155,754.72 and 72,561.92

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Solution

The fourth proportional to 112,917.60, 155,754.72 and 72,561.92 is: 100,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,917.60 : 155,754.72 = 72,561.92 : x
  2. Step 2: Convert to fraction form
    112,917.60/155,754.72 = 72,561.92/x
  3. Step 3: Cross multiply
    112,917.60x = 155,754.72 × 72,561.92
  4. Step 4: Simplify right side
    112,917.60x = 11,301,861,532.26
  5. Step 5: Solve for x
    x = 11,301,861,532.26/112,917.60
  6. Step 6: Final answer
    x = 100,089.46

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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.