Home / 143,726.63-198,342.74-80,068.52

Finding the Fourth Proportional to 143,726.63, 198,342.74 and 80,068.52

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Solution

The fourth proportional to 143,726.63, 198,342.74 and 80,068.52 is: 110,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,726.63 : 198,342.74 = 80,068.52 : x
  2. Step 2: Convert to fraction form
    143,726.63/198,342.74 = 80,068.52/x
  3. Step 3: Cross multiply
    143,726.63x = 198,342.74 × 80,068.52
  4. Step 4: Simplify right side
    143,726.63x = 15,881,010,340.57
  5. Step 5: Solve for x
    x = 15,881,010,340.57/143,726.63
  6. Step 6: Final answer
    x = 110,494.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.