Home / 103,678.11-155,424.56-40,483.53

Finding the Fourth Proportional to 103,678.11, 155,424.56 and 40,483.53

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Solution

The fourth proportional to 103,678.11, 155,424.56 and 40,483.53 is: 60,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.11 : 155,424.56 = 40,483.53 : x
  2. Step 2: Convert to fraction form
    103,678.11/155,424.56 = 40,483.53/x
  3. Step 3: Cross multiply
    103,678.11x = 155,424.56 × 40,483.53
  4. Step 4: Simplify right side
    103,678.11x = 6,292,135,023.64
  5. Step 5: Solve for x
    x = 6,292,135,023.64/103,678.11
  6. Step 6: Final answer
    x = 60,689.14

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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.