Home / 151,935.32-209,619.42-88,220.72

Finding the Fourth Proportional to 151,935.32, 209,619.42 and 88,220.72

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Solution

The fourth proportional to 151,935.32, 209,619.42 and 88,220.72 is: 121,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,935.32 : 209,619.42 = 88,220.72 : x
  2. Step 2: Convert to fraction form
    151,935.32/209,619.42 = 88,220.72/x
  3. Step 3: Cross multiply
    151,935.32x = 209,619.42 × 88,220.72
  4. Step 4: Simplify right side
    151,935.32x = 18,492,776,158.38
  5. Step 5: Solve for x
    x = 18,492,776,158.38/151,935.32
  6. Step 6: Final answer
    x = 121,714.79

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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.