Home / 115,410.11-159,268.98-64,422.63

Finding the Fourth Proportional to 115,410.11, 159,268.98 and 64,422.63

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Solution

The fourth proportional to 115,410.11, 159,268.98 and 64,422.63 is: 88,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,410.11 : 159,268.98 = 64,422.63 : x
  2. Step 2: Convert to fraction form
    115,410.11/159,268.98 = 64,422.63/x
  3. Step 3: Cross multiply
    115,410.11x = 159,268.98 × 64,422.63
  4. Step 4: Simplify right side
    115,410.11x = 10,260,526,569.02
  5. Step 5: Solve for x
    x = 10,260,526,569.02/115,410.11
  6. Step 6: Final answer
    x = 88,904.92

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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.