Home / 162,403.97-243,677.15-77,076.45

Finding the Fourth Proportional to 162,403.97, 243,677.15 and 77,076.45

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Solution

The fourth proportional to 162,403.97, 243,677.15 and 77,076.45 is: 115,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,403.97 : 243,677.15 = 77,076.45 : x
  2. Step 2: Convert to fraction form
    162,403.97/243,677.15 = 77,076.45/x
  3. Step 3: Cross multiply
    162,403.97x = 243,677.15 × 77,076.45
  4. Step 4: Simplify right side
    162,403.97x = 18,781,769,860.81
  5. Step 5: Solve for x
    x = 18,781,769,860.81/162,403.97
  6. Step 6: Final answer
    x = 115,648.47

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1.5x scale

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.