Home / 112,031.38-168,152.55-74,617.75

Finding the Fourth Proportional to 112,031.38, 168,152.55 and 74,617.75

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Solution

The fourth proportional to 112,031.38, 168,152.55 and 74,617.75 is: 111,996.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.38 : 168,152.55 = 74,617.75 : x
  2. Step 2: Convert to fraction form
    112,031.38/168,152.55 = 74,617.75/x
  3. Step 3: Cross multiply
    112,031.38x = 168,152.55 × 74,617.75
  4. Step 4: Simplify right side
    112,031.38x = 12,547,164,937.76
  5. Step 5: Solve for x
    x = 12,547,164,937.76/112,031.38
  6. Step 6: Final answer
    x = 111,996.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.