Home / 134,836.28-185,995.50-86,420.96

Finding the Fourth Proportional to 134,836.28, 185,995.50 and 86,420.96

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Solution

The fourth proportional to 134,836.28, 185,995.50 and 86,420.96 is: 119,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,836.28 : 185,995.50 = 86,420.96 : x
  2. Step 2: Convert to fraction form
    134,836.28/185,995.50 = 86,420.96/x
  3. Step 3: Cross multiply
    134,836.28x = 185,995.50 × 86,420.96
  4. Step 4: Simplify right side
    134,836.28x = 16,073,909,109.11
  5. Step 5: Solve for x
    x = 16,073,909,109.11/134,836.28
  6. Step 6: Final answer
    x = 119,210.57

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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.