Home / 176,403.88-243,442.02-100,976.68

Finding the Fourth Proportional to 176,403.88, 243,442.02 and 100,976.68

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Solution

The fourth proportional to 176,403.88, 243,442.02 and 100,976.68 is: 139,350.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,403.88 : 243,442.02 = 100,976.68 : x
  2. Step 2: Convert to fraction form
    176,403.88/243,442.02 = 100,976.68/x
  3. Step 3: Cross multiply
    176,403.88x = 243,442.02 × 100,976.68
  4. Step 4: Simplify right side
    176,403.88x = 24,581,966,952.09
  5. Step 5: Solve for x
    x = 24,581,966,952.09/176,403.88
  6. Step 6: Final answer
    x = 139,350.49

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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.