Home / 112,951.68-155,863.08-61,962.18

Finding the Fourth Proportional to 112,951.68, 155,863.08 and 61,962.18

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Solution

The fourth proportional to 112,951.68, 155,863.08 and 61,962.18 is: 85,502.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,951.68 : 155,863.08 = 61,962.18 : x
  2. Step 2: Convert to fraction form
    112,951.68/155,863.08 = 61,962.18/x
  3. Step 3: Cross multiply
    112,951.68x = 155,863.08 × 61,962.18
  4. Step 4: Simplify right side
    112,951.68x = 9,657,616,218.31
  5. Step 5: Solve for x
    x = 9,657,616,218.31/112,951.68
  6. Step 6: Final answer
    x = 85,502.19

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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.