Home / 156,329.15-215,734.98-84,709.31

Finding the Fourth Proportional to 156,329.15, 215,734.98 and 84,709.31

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Solution

The fourth proportional to 156,329.15, 215,734.98 and 84,709.31 is: 116,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,329.15 : 215,734.98 = 84,709.31 : x
  2. Step 2: Convert to fraction form
    156,329.15/215,734.98 = 84,709.31/x
  3. Step 3: Cross multiply
    156,329.15x = 215,734.98 × 84,709.31
  4. Step 4: Simplify right side
    156,329.15x = 18,274,760,061.16
  5. Step 5: Solve for x
    x = 18,274,760,061.16/156,329.15
  6. Step 6: Final answer
    x = 116,899.25

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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.