Home / 157,585.34-236,421.75-87,513.86

Finding the Fourth Proportional to 157,585.34, 236,421.75 and 87,513.86

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Solution

The fourth proportional to 157,585.34, 236,421.75 and 87,513.86 is: 131,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,585.34 : 236,421.75 = 87,513.86 : x
  2. Step 2: Convert to fraction form
    157,585.34/236,421.75 = 87,513.86/x
  3. Step 3: Cross multiply
    157,585.34x = 236,421.75 × 87,513.86
  4. Step 4: Simplify right side
    157,585.34x = 20,690,179,930.46
  5. Step 5: Solve for x
    x = 20,690,179,930.46/157,585.34
  6. Step 6: Final answer
    x = 131,295.08

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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.