Home / 156,073.40-215,380.86-84,454.64

Finding the Fourth Proportional to 156,073.40, 215,380.86 and 84,454.64

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Solution

The fourth proportional to 156,073.40, 215,380.86 and 84,454.64 is: 116,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,073.40 : 215,380.86 = 84,454.64 : x
  2. Step 2: Convert to fraction form
    156,073.40/215,380.86 = 84,454.64/x
  3. Step 3: Cross multiply
    156,073.40x = 215,380.86 × 84,454.64
  4. Step 4: Simplify right side
    156,073.40x = 18,189,912,994.19
  5. Step 5: Solve for x
    x = 18,189,912,994.19/156,073.40
  6. Step 6: Final answer
    x = 116,547.17

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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.