Home / 187,048.95-280,685.22-68,732.25

Finding the Fourth Proportional to 187,048.95, 280,685.22 and 68,732.25

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Solution

The fourth proportional to 187,048.95, 280,685.22 and 68,732.25 is: 103,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,048.95 : 280,685.22 = 68,732.25 : x
  2. Step 2: Convert to fraction form
    187,048.95/280,685.22 = 68,732.25/x
  3. Step 3: Cross multiply
    187,048.95x = 280,685.22 × 68,732.25
  4. Step 4: Simplify right side
    187,048.95x = 19,292,126,368.68
  5. Step 5: Solve for x
    x = 19,292,126,368.68/187,048.95
  6. Step 6: Final answer
    x = 103,139.45

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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.