Home / 112,569.22-155,330.31-64,177.39

Finding the Fourth Proportional to 112,569.22, 155,330.31 and 64,177.39

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Solution

The fourth proportional to 112,569.22, 155,330.31 and 64,177.39 is: 88,556.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,569.22 : 155,330.31 = 64,177.39 : x
  2. Step 2: Convert to fraction form
    112,569.22/155,330.31 = 64,177.39/x
  3. Step 3: Cross multiply
    112,569.22x = 155,330.31 × 64,177.39
  4. Step 4: Simplify right side
    112,569.22x = 9,968,693,957.52
  5. Step 5: Solve for x
    x = 9,968,693,957.52/112,569.22
  6. Step 6: Final answer
    x = 88,556.12

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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.