Home / 120,802.40-181,166.70-57,589.20

Finding the Fourth Proportional to 120,802.40, 181,166.70 and 57,589.20

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Solution

The fourth proportional to 120,802.40, 181,166.70 and 57,589.20 is: 86,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,802.40 : 181,166.70 = 57,589.20 : x
  2. Step 2: Convert to fraction form
    120,802.40/181,166.70 = 57,589.20/x
  3. Step 3: Cross multiply
    120,802.40x = 181,166.70 × 57,589.20
  4. Step 4: Simplify right side
    120,802.40x = 10,433,245,319.64
  5. Step 5: Solve for x
    x = 10,433,245,319.64/120,802.40
  6. Step 6: Final answer
    x = 86,366.21

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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.