Home / 156,307.33-215,701.28-88,322.84

Finding the Fourth Proportional to 156,307.33, 215,701.28 and 88,322.84

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Solution

The fourth proportional to 156,307.33, 215,701.28 and 88,322.84 is: 121,883.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,307.33 : 215,701.28 = 88,322.84 : x
  2. Step 2: Convert to fraction form
    156,307.33/215,701.28 = 88,322.84/x
  3. Step 3: Cross multiply
    156,307.33x = 215,701.28 × 88,322.84
  4. Step 4: Simplify right side
    156,307.33x = 19,051,348,902.95
  5. Step 5: Solve for x
    x = 19,051,348,902.95/156,307.33
  6. Step 6: Final answer
    x = 121,883.92

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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.