Home / 112,530.10-155,358.90-70,146.04

Finding the Fourth Proportional to 112,530.10, 155,358.90 and 70,146.04

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Solution

The fourth proportional to 112,530.10, 155,358.90 and 70,146.04 is: 96,843.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,530.10 : 155,358.90 = 70,146.04 : x
  2. Step 2: Convert to fraction form
    112,530.10/155,358.90 = 70,146.04/x
  3. Step 3: Cross multiply
    112,530.10x = 155,358.90 × 70,146.04
  4. Step 4: Simplify right side
    112,530.10x = 10,897,811,613.76
  5. Step 5: Solve for x
    x = 10,897,811,613.76/112,530.10
  6. Step 6: Final answer
    x = 96,843.53

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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.