Home / 125,613.68-188,400.90-81,552.92

Finding the Fourth Proportional to 125,613.68, 188,400.90 and 81,552.92

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Solution

The fourth proportional to 125,613.68, 188,400.90 and 81,552.92 is: 122,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,613.68 : 188,400.90 = 81,552.92 : x
  2. Step 2: Convert to fraction form
    125,613.68/188,400.90 = 81,552.92/x
  3. Step 3: Cross multiply
    125,613.68x = 188,400.90 × 81,552.92
  4. Step 4: Simplify right side
    125,613.68x = 15,364,643,525.63
  5. Step 5: Solve for x
    x = 15,364,643,525.63/125,613.68
  6. Step 6: Final answer
    x = 122,316.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.