Home / 142,138.13-196,062.19-84,737.57

Finding the Fourth Proportional to 142,138.13, 196,062.19 and 84,737.57

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Solution

The fourth proportional to 142,138.13, 196,062.19 and 84,737.57 is: 116,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,138.13 : 196,062.19 = 84,737.57 : x
  2. Step 2: Convert to fraction form
    142,138.13/196,062.19 = 84,737.57/x
  3. Step 3: Cross multiply
    142,138.13x = 196,062.19 × 84,737.57
  4. Step 4: Simplify right side
    142,138.13x = 16,613,832,357.32
  5. Step 5: Solve for x
    x = 16,613,832,357.32/142,138.13
  6. Step 6: Final answer
    x = 116,885.12

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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.