Home / 112,677.33-155,496.55-61,689.21

Finding the Fourth Proportional to 112,677.33, 155,496.55 and 61,689.21

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Solution

The fourth proportional to 112,677.33, 155,496.55 and 61,689.21 is: 85,132.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,677.33 : 155,496.55 = 61,689.21 : x
  2. Step 2: Convert to fraction form
    112,677.33/155,496.55 = 61,689.21/x
  3. Step 3: Cross multiply
    112,677.33x = 155,496.55 × 61,689.21
  4. Step 4: Simplify right side
    112,677.33x = 9,592,458,549.74
  5. Step 5: Solve for x
    x = 9,592,458,549.74/112,677.33
  6. Step 6: Final answer
    x = 85,132.11

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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.