Home / 102,128.33-153,193.61-31,062.53

Finding the Fourth Proportional to 102,128.33, 153,193.61 and 31,062.53

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Solution

The fourth proportional to 102,128.33, 153,193.61 and 31,062.53 is: 46,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,128.33 : 153,193.61 = 31,062.53 : x
  2. Step 2: Convert to fraction form
    102,128.33/153,193.61 = 31,062.53/x
  3. Step 3: Cross multiply
    102,128.33x = 153,193.61 × 31,062.53
  4. Step 4: Simplify right side
    102,128.33x = 4,758,581,106.43
  5. Step 5: Solve for x
    x = 4,758,581,106.43/102,128.33
  6. Step 6: Final answer
    x = 46,594.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.