Home / 115,132.61-158,872.14-64,140.14

Finding the Fourth Proportional to 115,132.61, 158,872.14 and 64,140.14

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Solution

The fourth proportional to 115,132.61, 158,872.14 and 64,140.14 is: 88,507.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,132.61 : 158,872.14 = 64,140.14 : x
  2. Step 2: Convert to fraction form
    115,132.61/158,872.14 = 64,140.14/x
  3. Step 3: Cross multiply
    115,132.61x = 158,872.14 × 64,140.14
  4. Step 4: Simplify right side
    115,132.61x = 10,190,081,698.88
  5. Step 5: Solve for x
    x = 10,190,081,698.88/115,132.61
  6. Step 6: Final answer
    x = 88,507.34

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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.