Home / 112,853.28-155,663.46-72,503.40

Finding the Fourth Proportional to 112,853.28, 155,663.46 and 72,503.40

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Solution

The fourth proportional to 112,853.28, 155,663.46 and 72,503.40 is: 100,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,853.28 : 155,663.46 = 72,503.40 : x
  2. Step 2: Convert to fraction form
    112,853.28/155,663.46 = 72,503.40/x
  3. Step 3: Cross multiply
    112,853.28x = 155,663.46 × 72,503.40
  4. Step 4: Simplify right side
    112,853.28x = 11,286,130,105.76
  5. Step 5: Solve for x
    x = 11,286,130,105.76/112,853.28
  6. Step 6: Final answer
    x = 100,007.11

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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.