Home / 115,431.16-159,297.50-63,748.10

Finding the Fourth Proportional to 115,431.16, 159,297.50 and 63,748.10

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Solution

The fourth proportional to 115,431.16, 159,297.50 and 63,748.10 is: 87,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,431.16 : 159,297.50 = 63,748.10 : x
  2. Step 2: Convert to fraction form
    115,431.16/159,297.50 = 63,748.10/x
  3. Step 3: Cross multiply
    115,431.16x = 159,297.50 × 63,748.10
  4. Step 4: Simplify right side
    115,431.16x = 10,154,912,959.75
  5. Step 5: Solve for x
    x = 10,154,912,959.75/115,431.16
  6. Step 6: Final answer
    x = 87,973.76

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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.