Home / 121,346.85-182,020.28-79,356.45

Finding the Fourth Proportional to 121,346.85, 182,020.28 and 79,356.45

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Solution

The fourth proportional to 121,346.85, 182,020.28 and 79,356.45 is: 119,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,346.85 : 182,020.28 = 79,356.45 : x
  2. Step 2: Convert to fraction form
    121,346.85/182,020.28 = 79,356.45/x
  3. Step 3: Cross multiply
    121,346.85x = 182,020.28 × 79,356.45
  4. Step 4: Simplify right side
    121,346.85x = 14,444,482,852.02
  5. Step 5: Solve for x
    x = 14,444,482,852.02/121,346.85
  6. Step 6: Final answer
    x = 119,034.68

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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.