Home / 156,052.31-215,350.65-84,430.76

Finding the Fourth Proportional to 156,052.31, 215,350.65 and 84,430.76

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Solution

The fourth proportional to 156,052.31, 215,350.65 and 84,430.76 is: 116,513.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,052.31 : 215,350.65 = 84,430.76 : x
  2. Step 2: Convert to fraction form
    156,052.31/215,350.65 = 84,430.76/x
  3. Step 3: Cross multiply
    156,052.31x = 215,350.65 × 84,430.76
  4. Step 4: Simplify right side
    156,052.31x = 18,182,217,969.24
  5. Step 5: Solve for x
    x = 18,182,217,969.24/156,052.31
  6. Step 6: Final answer
    x = 116,513.61

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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.