Home / 151,924.48-209,613.12-87,390.34

Finding the Fourth Proportional to 151,924.48, 209,613.12 and 87,390.34

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Solution

The fourth proportional to 151,924.48, 209,613.12 and 87,390.34 is: 120,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,924.48 : 209,613.12 = 87,390.34 : x
  2. Step 2: Convert to fraction form
    151,924.48/209,613.12 = 87,390.34/x
  3. Step 3: Cross multiply
    151,924.48x = 209,613.12 × 87,390.34
  4. Step 4: Simplify right side
    151,924.48x = 18,318,161,825.26
  5. Step 5: Solve for x
    x = 18,318,161,825.26/151,924.48
  6. Step 6: Final answer
    x = 120,574.13

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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.