Home / 112,700.82-155,520.26-61,714.18

Finding the Fourth Proportional to 112,700.82, 155,520.26 and 61,714.18

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Solution

The fourth proportional to 112,700.82, 155,520.26 and 61,714.18 is: 85,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.82 : 155,520.26 = 61,714.18 : x
  2. Step 2: Convert to fraction form
    112,700.82/155,520.26 = 61,714.18/x
  3. Step 3: Cross multiply
    112,700.82x = 155,520.26 × 61,714.18
  4. Step 4: Simplify right side
    112,700.82x = 9,597,805,319.29
  5. Step 5: Solve for x
    x = 9,597,805,319.29/112,700.82
  6. Step 6: Final answer
    x = 85,161.81

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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.