Home / 112,405.62-155,114.95-61,417.54

Finding the Fourth Proportional to 112,405.62, 155,114.95 and 61,417.54

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Solution

The fourth proportional to 112,405.62, 155,114.95 and 61,417.54 is: 84,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,405.62 : 155,114.95 = 61,417.54 : x
  2. Step 2: Convert to fraction form
    112,405.62/155,114.95 = 61,417.54/x
  3. Step 3: Cross multiply
    112,405.62x = 155,114.95 × 61,417.54
  4. Step 4: Simplify right side
    112,405.62x = 9,526,778,801.73
  5. Step 5: Solve for x
    x = 9,526,778,801.73/112,405.62
  6. Step 6: Final answer
    x = 84,753.58

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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.