Home / 136,737.12-188,706.68-76,319.52

Finding the Fourth Proportional to 136,737.12, 188,706.68 and 76,319.52

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Solution

The fourth proportional to 136,737.12, 188,706.68 and 76,319.52 is: 105,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,737.12 : 188,706.68 = 76,319.52 : x
  2. Step 2: Convert to fraction form
    136,737.12/188,706.68 = 76,319.52/x
  3. Step 3: Cross multiply
    136,737.12x = 188,706.68 × 76,319.52
  4. Step 4: Simplify right side
    136,737.12x = 14,402,003,238.39
  5. Step 5: Solve for x
    x = 14,402,003,238.39/136,737.12
  6. Step 6: Final answer
    x = 105,326.21

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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.