Home / 115,713.43-159,677.02-64,717.34

Finding the Fourth Proportional to 115,713.43, 159,677.02 and 64,717.34

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Solution

The fourth proportional to 115,713.43, 159,677.02 and 64,717.34 is: 89,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,713.43 : 159,677.02 = 64,717.34 : x
  2. Step 2: Convert to fraction form
    115,713.43/159,677.02 = 64,717.34/x
  3. Step 3: Cross multiply
    115,713.43x = 159,677.02 × 64,717.34
  4. Step 4: Simplify right side
    115,713.43x = 10,333,871,195.14
  5. Step 5: Solve for x
    x = 10,333,871,195.14/115,713.43
  6. Step 6: Final answer
    x = 89,305.72

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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.