Home / 112,775.52-155,630.18-61,791.50

Finding the Fourth Proportional to 112,775.52, 155,630.18 and 61,791.50

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Solution

The fourth proportional to 112,775.52, 155,630.18 and 61,791.50 is: 85,272.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,775.52 : 155,630.18 = 61,791.50 : x
  2. Step 2: Convert to fraction form
    112,775.52/155,630.18 = 61,791.50/x
  3. Step 3: Cross multiply
    112,775.52x = 155,630.18 × 61,791.50
  4. Step 4: Simplify right side
    112,775.52x = 9,616,622,267.47
  5. Step 5: Solve for x
    x = 9,616,622,267.47/112,775.52
  6. Step 6: Final answer
    x = 85,272.25

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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.