Home / 159,042.03-219,475.54-87,420.52

Finding the Fourth Proportional to 159,042.03, 219,475.54 and 87,420.52

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Solution

The fourth proportional to 159,042.03, 219,475.54 and 87,420.52 is: 120,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,042.03 : 219,475.54 = 87,420.52 : x
  2. Step 2: Convert to fraction form
    159,042.03/219,475.54 = 87,420.52/x
  3. Step 3: Cross multiply
    159,042.03x = 219,475.54 × 87,420.52
  4. Step 4: Simplify right side
    159,042.03x = 19,186,665,834.08
  5. Step 5: Solve for x
    x = 19,186,665,834.08/159,042.03
  6. Step 6: Final answer
    x = 120,638.96

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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.