Home / 121,356.30-182,002.05-42,462.30

Finding the Fourth Proportional to 121,356.30, 182,002.05 and 42,462.30

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Solution

The fourth proportional to 121,356.30, 182,002.05 and 42,462.30 is: 63,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,356.30 : 182,002.05 = 42,462.30 : x
  2. Step 2: Convert to fraction form
    121,356.30/182,002.05 = 42,462.30/x
  3. Step 3: Cross multiply
    121,356.30x = 182,002.05 × 42,462.30
  4. Step 4: Simplify right side
    121,356.30x = 7,728,225,647.72
  5. Step 5: Solve for x
    x = 7,728,225,647.72/121,356.30
  6. Step 6: Final answer
    x = 63,682.11

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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.