Home / 160,135.32-239,853.06-81,113.88

Finding the Fourth Proportional to 160,135.32, 239,853.06 and 81,113.88

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Solution

The fourth proportional to 160,135.32, 239,853.06 and 81,113.88 is: 121,493.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,135.32 : 239,853.06 = 81,113.88 : x
  2. Step 2: Convert to fraction form
    160,135.32/239,853.06 = 81,113.88/x
  3. Step 3: Cross multiply
    160,135.32x = 239,853.06 × 81,113.88
  4. Step 4: Simplify right side
    160,135.32x = 19,455,412,326.47
  5. Step 5: Solve for x
    x = 19,455,412,326.47/160,135.32
  6. Step 6: Final answer
    x = 121,493.57

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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.