Home / 115,125.28-158,870.48-64,137.96

Finding the Fourth Proportional to 115,125.28, 158,870.48 and 64,137.96

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Solution

The fourth proportional to 115,125.28, 158,870.48 and 64,137.96 is: 88,509.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,125.28 : 158,870.48 = 64,137.96 : x
  2. Step 2: Convert to fraction form
    115,125.28/158,870.48 = 64,137.96/x
  3. Step 3: Cross multiply
    115,125.28x = 158,870.48 × 64,137.96
  4. Step 4: Simplify right side
    115,125.28x = 10,189,628,491.42
  5. Step 5: Solve for x
    x = 10,189,628,491.42/115,125.28
  6. Step 6: Final answer
    x = 88,509.04

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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.