Home / 121,503.90-182,255.85-76,998.45

Finding the Fourth Proportional to 121,503.90, 182,255.85 and 76,998.45

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Solution

The fourth proportional to 121,503.90, 182,255.85 and 76,998.45 is: 115,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,503.90 : 182,255.85 = 76,998.45 : x
  2. Step 2: Convert to fraction form
    121,503.90/182,255.85 = 76,998.45/x
  3. Step 3: Cross multiply
    121,503.90x = 182,255.85 × 76,998.45
  4. Step 4: Simplify right side
    121,503.90x = 14,033,417,953.43
  5. Step 5: Solve for x
    x = 14,033,417,953.43/121,503.90
  6. Step 6: Final answer
    x = 115,497.68

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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.