Home / 115,350.64-159,110.40-101,703.76

Finding the Fourth Proportional to 115,350.64, 159,110.40 and 101,703.76

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Solution

The fourth proportional to 115,350.64, 159,110.40 and 101,703.76 is: 140,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,350.64 : 159,110.40 = 101,703.76 : x
  2. Step 2: Convert to fraction form
    115,350.64/159,110.40 = 101,703.76/x
  3. Step 3: Cross multiply
    115,350.64x = 159,110.40 × 101,703.76
  4. Step 4: Simplify right side
    115,350.64x = 16,182,125,935.10
  5. Step 5: Solve for x
    x = 16,182,125,935.10/115,350.64
  6. Step 6: Final answer
    x = 140,286.40

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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.