Home / 156,310.29-215,707.91-84,692.25

Finding the Fourth Proportional to 156,310.29, 215,707.91 and 84,692.25

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Solution

The fourth proportional to 156,310.29, 215,707.91 and 84,692.25 is: 116,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,310.29 : 215,707.91 = 84,692.25 : x
  2. Step 2: Convert to fraction form
    156,310.29/215,707.91 = 84,692.25/x
  3. Step 3: Cross multiply
    156,310.29x = 215,707.91 × 84,692.25
  4. Step 4: Simplify right side
    156,310.29x = 18,268,787,817.24
  5. Step 5: Solve for x
    x = 18,268,787,817.24/156,310.29
  6. Step 6: Final answer
    x = 116,875.15

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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.