Home / 156,102.18-215,420.25-84,482.10

Finding the Fourth Proportional to 156,102.18, 215,420.25 and 84,482.10

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Solution

The fourth proportional to 156,102.18, 215,420.25 and 84,482.10 is: 116,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,102.18 : 215,420.25 = 84,482.10 : x
  2. Step 2: Convert to fraction form
    156,102.18/215,420.25 = 84,482.10/x
  3. Step 3: Cross multiply
    156,102.18x = 215,420.25 × 84,482.10
  4. Step 4: Simplify right side
    156,102.18x = 18,199,155,102.53
  5. Step 5: Solve for x
    x = 18,199,155,102.53/156,102.18
  6. Step 6: Final answer
    x = 116,584.89

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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.