Home / 158,557.04-218,811.68-86,932.76

Finding the Fourth Proportional to 158,557.04, 218,811.68 and 86,932.76

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Solution

The fourth proportional to 158,557.04, 218,811.68 and 86,932.76 is: 119,968.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,557.04 : 218,811.68 = 86,932.76 : x
  2. Step 2: Convert to fraction form
    158,557.04/218,811.68 = 86,932.76/x
  3. Step 3: Cross multiply
    158,557.04x = 218,811.68 × 86,932.76
  4. Step 4: Simplify right side
    158,557.04x = 19,021,903,262.64
  5. Step 5: Solve for x
    x = 19,021,903,262.64/158,557.04
  6. Step 6: Final answer
    x = 119,968.83

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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.