Home / 187,058.28-280,624.02-68,730.60

Finding the Fourth Proportional to 187,058.28, 280,624.02 and 68,730.60

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Solution

The fourth proportional to 187,058.28, 280,624.02 and 68,730.60 is: 103,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,058.28 : 280,624.02 = 68,730.60 : x
  2. Step 2: Convert to fraction form
    187,058.28/280,624.02 = 68,730.60/x
  3. Step 3: Cross multiply
    187,058.28x = 280,624.02 × 68,730.60
  4. Step 4: Simplify right side
    187,058.28x = 19,287,457,269.01
  5. Step 5: Solve for x
    x = 19,287,457,269.01/187,058.28
  6. Step 6: Final answer
    x = 103,109.35

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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.