Home / 156,358.72-215,774.49-84,740.50

Finding the Fourth Proportional to 156,358.72, 215,774.49 and 84,740.50

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Solution

The fourth proportional to 156,358.72, 215,774.49 and 84,740.50 is: 116,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,358.72 : 215,774.49 = 84,740.50 : x
  2. Step 2: Convert to fraction form
    156,358.72/215,774.49 = 84,740.50/x
  3. Step 3: Cross multiply
    156,358.72x = 215,774.49 × 84,740.50
  4. Step 4: Simplify right side
    156,358.72x = 18,284,838,169.85
  5. Step 5: Solve for x
    x = 18,284,838,169.85/156,358.72
  6. Step 6: Final answer
    x = 116,941.60

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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.