Home / 100,133.25-138,184.02-62,407.50

Finding the Fourth Proportional to 100,133.25, 138,184.02 and 62,407.50

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Solution

The fourth proportional to 100,133.25, 138,184.02 and 62,407.50 is: 86,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,133.25 : 138,184.02 = 62,407.50 : x
  2. Step 2: Convert to fraction form
    100,133.25/138,184.02 = 62,407.50/x
  3. Step 3: Cross multiply
    100,133.25x = 138,184.02 × 62,407.50
  4. Step 4: Simplify right side
    100,133.25x = 8,623,719,228.15
  5. Step 5: Solve for x
    x = 8,623,719,228.15/100,133.25
  6. Step 6: Final answer
    x = 86,122.43

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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.