Home / 115,654.12-159,585.06-65,334.76

Finding the Fourth Proportional to 115,654.12, 159,585.06 and 65,334.76

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Solution

The fourth proportional to 115,654.12, 159,585.06 and 65,334.76 is: 90,152.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,654.12 : 159,585.06 = 65,334.76 : x
  2. Step 2: Convert to fraction form
    115,654.12/159,585.06 = 65,334.76/x
  3. Step 3: Cross multiply
    115,654.12x = 159,585.06 × 65,334.76
  4. Step 4: Simplify right side
    115,654.12x = 10,426,451,594.69
  5. Step 5: Solve for x
    x = 10,426,451,594.69/115,654.12
  6. Step 6: Final answer
    x = 90,152.01

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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.