Home / 112,770.28-155,620.95-61,784.02

Finding the Fourth Proportional to 112,770.28, 155,620.95 and 61,784.02

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Solution

The fourth proportional to 112,770.28, 155,620.95 and 61,784.02 is: 85,260.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,770.28 : 155,620.95 = 61,784.02 : x
  2. Step 2: Convert to fraction form
    112,770.28/155,620.95 = 61,784.02/x
  3. Step 3: Cross multiply
    112,770.28x = 155,620.95 × 61,784.02
  4. Step 4: Simplify right side
    112,770.28x = 9,614,887,887.22
  5. Step 5: Solve for x
    x = 9,614,887,887.22/112,770.28
  6. Step 6: Final answer
    x = 85,260.83

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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.