Home / 158,581.40-218,845.33-86,957.15

Finding the Fourth Proportional to 158,581.40, 218,845.33 and 86,957.15

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Solution

The fourth proportional to 158,581.40, 218,845.33 and 86,957.15 is: 120,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,581.40 : 218,845.33 = 86,957.15 : x
  2. Step 2: Convert to fraction form
    158,581.40/218,845.33 = 86,957.15/x
  3. Step 3: Cross multiply
    158,581.40x = 218,845.33 × 86,957.15
  4. Step 4: Simplify right side
    158,581.40x = 19,030,164,875.99
  5. Step 5: Solve for x
    x = 19,030,164,875.99/158,581.40
  6. Step 6: Final answer
    x = 120,002.51

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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.