Home / 152,969.11-229,258.96-86,446.34

Finding the Fourth Proportional to 152,969.11, 229,258.96 and 86,446.34

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Solution

The fourth proportional to 152,969.11, 229,258.96 and 86,446.34 is: 129,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,969.11 : 229,258.96 = 86,446.34 : x
  2. Step 2: Convert to fraction form
    152,969.11/229,258.96 = 86,446.34/x
  3. Step 3: Cross multiply
    152,969.11x = 229,258.96 × 86,446.34
  4. Step 4: Simplify right side
    152,969.11x = 19,818,597,501.52
  5. Step 5: Solve for x
    x = 19,818,597,501.52/152,969.11
  6. Step 6: Final answer
    x = 129,559.48

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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.