Home / 98,939.19-148,407.19-31,470.25

Finding the Fourth Proportional to 98,939.19, 148,407.19 and 31,470.25

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Solution

The fourth proportional to 98,939.19, 148,407.19 and 31,470.25 is: 47,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,939.19 : 148,407.19 = 31,470.25 : x
  2. Step 2: Convert to fraction form
    98,939.19/148,407.19 = 31,470.25/x
  3. Step 3: Cross multiply
    98,939.19x = 148,407.19 × 31,470.25
  4. Step 4: Simplify right side
    98,939.19x = 4,670,411,371.10
  5. Step 5: Solve for x
    x = 4,670,411,371.10/98,939.19
  6. Step 6: Final answer
    x = 47,204.87

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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.