Home / 156,134.08-215,465.70-88,154.02

Finding the Fourth Proportional to 156,134.08, 215,465.70 and 88,154.02

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Solution

The fourth proportional to 156,134.08, 215,465.70 and 88,154.02 is: 121,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,134.08 : 215,465.70 = 88,154.02 : x
  2. Step 2: Convert to fraction form
    156,134.08/215,465.70 = 88,154.02/x
  3. Step 3: Cross multiply
    156,134.08x = 215,465.70 × 88,154.02
  4. Step 4: Simplify right side
    156,134.08x = 18,994,167,627.11
  5. Step 5: Solve for x
    x = 18,994,167,627.11/156,134.08
  6. Step 6: Final answer
    x = 121,652.93

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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.