Home / 112,677.30-155,496.51-61,689.20

Finding the Fourth Proportional to 112,677.30, 155,496.51 and 61,689.20

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Solution

The fourth proportional to 112,677.30, 155,496.51 and 61,689.20 is: 85,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,677.30 : 155,496.51 = 61,689.20 : x
  2. Step 2: Convert to fraction form
    112,677.30/155,496.51 = 61,689.20/x
  3. Step 3: Cross multiply
    112,677.30x = 155,496.51 × 61,689.20
  4. Step 4: Simplify right side
    112,677.30x = 9,592,454,527.21
  5. Step 5: Solve for x
    x = 9,592,454,527.21/112,677.30
  6. Step 6: Final answer
    x = 85,132.09

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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.