Home / 112,700.35-155,521.68-61,712.17

Finding the Fourth Proportional to 112,700.35, 155,521.68 and 61,712.17

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Solution

The fourth proportional to 112,700.35, 155,521.68 and 61,712.17 is: 85,160.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.35 : 155,521.68 = 61,712.17 : x
  2. Step 2: Convert to fraction form
    112,700.35/155,521.68 = 61,712.17/x
  3. Step 3: Cross multiply
    112,700.35x = 155,521.68 × 61,712.17
  4. Step 4: Simplify right side
    112,700.35x = 9,597,580,354.85
  5. Step 5: Solve for x
    x = 9,597,580,354.85/112,700.35
  6. Step 6: Final answer
    x = 85,160.16

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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.