Home / 115,253.44-159,070.75-66,886.31

Finding the Fourth Proportional to 115,253.44, 159,070.75 and 66,886.31

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Solution

The fourth proportional to 115,253.44, 159,070.75 and 66,886.31 is: 92,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,253.44 : 159,070.75 = 66,886.31 : x
  2. Step 2: Convert to fraction form
    115,253.44/159,070.75 = 66,886.31/x
  3. Step 3: Cross multiply
    115,253.44x = 159,070.75 × 66,886.31
  4. Step 4: Simplify right side
    115,253.44x = 10,639,655,496.43
  5. Step 5: Solve for x
    x = 10,639,655,496.43/115,253.44
  6. Step 6: Final answer
    x = 92,315.30

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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.