Home / 149,045.48-205,767.78-98,812.52

Finding the Fourth Proportional to 149,045.48, 205,767.78 and 98,812.52

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Solution

The fourth proportional to 149,045.48, 205,767.78 and 98,812.52 is: 136,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,045.48 : 205,767.78 = 98,812.52 : x
  2. Step 2: Convert to fraction form
    149,045.48/205,767.78 = 98,812.52/x
  3. Step 3: Cross multiply
    149,045.48x = 205,767.78 × 98,812.52
  4. Step 4: Simplify right side
    149,045.48x = 20,332,432,876.61
  5. Step 5: Solve for x
    x = 20,332,432,876.61/149,045.48
  6. Step 6: Final answer
    x = 136,417.64

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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.