Home / 85,126.81-127,803.08-72,726.52

Finding the Fourth Proportional to 85,126.81, 127,803.08 and 72,726.52

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Solution

The fourth proportional to 85,126.81, 127,803.08 and 72,726.52 is: 109,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,126.81 : 127,803.08 = 72,726.52 : x
  2. Step 2: Convert to fraction form
    85,126.81/127,803.08 = 72,726.52/x
  3. Step 3: Cross multiply
    85,126.81x = 127,803.08 × 72,726.52
  4. Step 4: Simplify right side
    85,126.81x = 9,294,673,253.68
  5. Step 5: Solve for x
    x = 9,294,673,253.68/85,126.81
  6. Step 6: Final answer
    x = 109,186.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.