Home / 115,179.30-158,936.58-64,187.10

Finding the Fourth Proportional to 115,179.30, 158,936.58 and 64,187.10

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Solution

The fourth proportional to 115,179.30, 158,936.58 and 64,187.10 is: 88,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,179.30 : 158,936.58 = 64,187.10 : x
  2. Step 2: Convert to fraction form
    115,179.30/158,936.58 = 64,187.10/x
  3. Step 3: Cross multiply
    115,179.30x = 158,936.58 × 64,187.10
  4. Step 4: Simplify right side
    115,179.30x = 10,201,678,154.12
  5. Step 5: Solve for x
    x = 10,201,678,154.12/115,179.30
  6. Step 6: Final answer
    x = 88,572.15

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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.