Home / 100,445.31-138,613.35-58,002.93

Finding the Fourth Proportional to 100,445.31, 138,613.35 and 58,002.93

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Solution

The fourth proportional to 100,445.31, 138,613.35 and 58,002.93 is: 80,043.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,445.31 : 138,613.35 = 58,002.93 : x
  2. Step 2: Convert to fraction form
    100,445.31/138,613.35 = 58,002.93/x
  3. Step 3: Cross multiply
    100,445.31x = 138,613.35 × 58,002.93
  4. Step 4: Simplify right side
    100,445.31x = 8,039,980,437.12
  5. Step 5: Solve for x
    x = 8,039,980,437.12/100,445.31
  6. Step 6: Final answer
    x = 80,043.36

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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.