Home / 91,246.26-126,006.45-86,276.30

Finding the Fourth Proportional to 91,246.26, 126,006.45 and 86,276.30

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Solution

The fourth proportional to 91,246.26, 126,006.45 and 86,276.30 is: 119,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,246.26 : 126,006.45 = 86,276.30 : x
  2. Step 2: Convert to fraction form
    91,246.26/126,006.45 = 86,276.30/x
  3. Step 3: Cross multiply
    91,246.26x = 126,006.45 × 86,276.30
  4. Step 4: Simplify right side
    91,246.26x = 10,871,369,652.10
  5. Step 5: Solve for x
    x = 10,871,369,652.10/91,246.26
  6. Step 6: Final answer
    x = 119,143.18

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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.