Home / 115,680.49-159,632.40-63,994.48

Finding the Fourth Proportional to 115,680.49, 159,632.40 and 63,994.48

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Solution

The fourth proportional to 115,680.49, 159,632.40 and 63,994.48 is: 88,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,680.49 : 159,632.40 = 63,994.48 : x
  2. Step 2: Convert to fraction form
    115,680.49/159,632.40 = 63,994.48/x
  3. Step 3: Cross multiply
    115,680.49x = 159,632.40 × 63,994.48
  4. Step 4: Simplify right side
    115,680.49x = 10,215,592,429.15
  5. Step 5: Solve for x
    x = 10,215,592,429.15/115,680.49
  6. Step 6: Final answer
    x = 88,308.69

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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.