Home / 156,442.28-215,890.88-84,822.38

Finding the Fourth Proportional to 156,442.28, 215,890.88 and 84,822.38

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Solution

The fourth proportional to 156,442.28, 215,890.88 and 84,822.38 is: 117,055.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,442.28 : 215,890.88 = 84,822.38 : x
  2. Step 2: Convert to fraction form
    156,442.28/215,890.88 = 84,822.38/x
  3. Step 3: Cross multiply
    156,442.28x = 215,890.88 × 84,822.38
  4. Step 4: Simplify right side
    156,442.28x = 18,312,378,261.89
  5. Step 5: Solve for x
    x = 18,312,378,261.89/156,442.28
  6. Step 6: Final answer
    x = 117,055.17

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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.