Home / 112,527.12-155,214.28-72,176.97

Finding the Fourth Proportional to 112,527.12, 155,214.28 and 72,176.97

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Solution

The fourth proportional to 112,527.12, 155,214.28 and 72,176.97 is: 99,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,527.12 : 155,214.28 = 72,176.97 : x
  2. Step 2: Convert to fraction form
    112,527.12/155,214.28 = 72,176.97/x
  3. Step 3: Cross multiply
    112,527.12x = 155,214.28 × 72,176.97
  4. Step 4: Simplify right side
    112,527.12x = 11,202,896,697.41
  5. Step 5: Solve for x
    x = 11,202,896,697.41/112,527.12
  6. Step 6: Final answer
    x = 99,557.30

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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.