Home / 115,678.18-159,632.88-63,997.18

Finding the Fourth Proportional to 115,678.18, 159,632.88 and 63,997.18

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Solution

The fourth proportional to 115,678.18, 159,632.88 and 63,997.18 is: 88,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,678.18 : 159,632.88 = 63,997.18 : x
  2. Step 2: Convert to fraction form
    115,678.18/159,632.88 = 63,997.18/x
  3. Step 3: Cross multiply
    115,678.18x = 159,632.88 × 63,997.18
  4. Step 4: Simplify right side
    115,678.18x = 10,216,054,155.28
  5. Step 5: Solve for x
    x = 10,216,054,155.28/115,678.18
  6. Step 6: Final answer
    x = 88,314.44

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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.