Home / 138,486.34-207,581.28-98,923.51

Finding the Fourth Proportional to 138,486.34, 207,581.28 and 98,923.51

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Solution

The fourth proportional to 138,486.34, 207,581.28 and 98,923.51 is: 148,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,486.34 : 207,581.28 = 98,923.51 : x
  2. Step 2: Convert to fraction form
    138,486.34/207,581.28 = 98,923.51/x
  3. Step 3: Cross multiply
    138,486.34x = 207,581.28 × 98,923.51
  4. Step 4: Simplify right side
    138,486.34x = 20,534,668,827.89
  5. Step 5: Solve for x
    x = 20,534,668,827.89/138,486.34
  6. Step 6: Final answer
    x = 148,279.38

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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.