Home / 121,359.48-182,033.55-42,491.40

Finding the Fourth Proportional to 121,359.48, 182,033.55 and 42,491.40

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Solution

The fourth proportional to 121,359.48, 182,033.55 and 42,491.40 is: 63,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,359.48 : 182,033.55 = 42,491.40 : x
  2. Step 2: Convert to fraction form
    121,359.48/182,033.55 = 42,491.40/x
  3. Step 3: Cross multiply
    121,359.48x = 182,033.55 × 42,491.40
  4. Step 4: Simplify right side
    121,359.48x = 7,734,860,386.47
  5. Step 5: Solve for x
    x = 7,734,860,386.47/121,359.48
  6. Step 6: Final answer
    x = 63,735.11

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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.