Home / 115,306.14-159,116.40-64,324.20

Finding the Fourth Proportional to 115,306.14, 159,116.40 and 64,324.20

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Solution

The fourth proportional to 115,306.14, 159,116.40 and 64,324.20 is: 88,764.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,306.14 : 159,116.40 = 64,324.20 : x
  2. Step 2: Convert to fraction form
    115,306.14/159,116.40 = 64,324.20/x
  3. Step 3: Cross multiply
    115,306.14x = 159,116.40 × 64,324.20
  4. Step 4: Simplify right side
    115,306.14x = 10,235,035,136.88
  5. Step 5: Solve for x
    x = 10,235,035,136.88/115,306.14
  6. Step 6: Final answer
    x = 88,764.01

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1.5x scale

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.