Home / 159,815.80-239,870.94-80,985.16

Finding the Fourth Proportional to 159,815.80, 239,870.94 and 80,985.16

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Solution

The fourth proportional to 159,815.80, 239,870.94 and 80,985.16 is: 121,552.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,815.80 : 239,870.94 = 80,985.16 : x
  2. Step 2: Convert to fraction form
    159,815.80/239,870.94 = 80,985.16/x
  3. Step 3: Cross multiply
    159,815.80x = 239,870.94 × 80,985.16
  4. Step 4: Simplify right side
    159,815.80x = 19,425,986,455.25
  5. Step 5: Solve for x
    x = 19,425,986,455.25/159,815.80
  6. Step 6: Final answer
    x = 121,552.35

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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.