Home / 151,870.20-209,583.06-88,207.98

Finding the Fourth Proportional to 151,870.20, 209,583.06 and 88,207.98

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Solution

The fourth proportional to 151,870.20, 209,583.06 and 88,207.98 is: 121,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,870.20 : 209,583.06 = 88,207.98 : x
  2. Step 2: Convert to fraction form
    151,870.20/209,583.06 = 88,207.98/x
  3. Step 3: Cross multiply
    151,870.20x = 209,583.06 × 88,207.98
  4. Step 4: Simplify right side
    151,870.20x = 18,486,898,364.82
  5. Step 5: Solve for x
    x = 18,486,898,364.82/151,870.20
  6. Step 6: Final answer
    x = 121,728.28

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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.