Home / 302,769.19-454,151.51-78,110.53

Finding the Fourth Proportional to 302,769.19, 454,151.51 and 78,110.53

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Solution

The fourth proportional to 302,769.19, 454,151.51 and 78,110.53 is: 117,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,769.19 : 454,151.51 = 78,110.53 : x
  2. Step 2: Convert to fraction form
    302,769.19/454,151.51 = 78,110.53/x
  3. Step 3: Cross multiply
    302,769.19x = 454,151.51 × 78,110.53
  4. Step 4: Simplify right side
    302,769.19x = 35,474,013,913.38
  5. Step 5: Solve for x
    x = 35,474,013,913.38/302,769.19
  6. Step 6: Final answer
    x = 117,165.20

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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.