Home / 162,289.47-243,634.68-76,981.89

Finding the Fourth Proportional to 162,289.47, 243,634.68 and 76,981.89

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Solution

The fourth proportional to 162,289.47, 243,634.68 and 76,981.89 is: 115,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,289.47 : 243,634.68 = 76,981.89 : x
  2. Step 2: Convert to fraction form
    162,289.47/243,634.68 = 76,981.89/x
  3. Step 3: Cross multiply
    162,289.47x = 243,634.68 × 76,981.89
  4. Step 4: Simplify right side
    162,289.47x = 18,755,458,135.95
  5. Step 5: Solve for x
    x = 18,755,458,135.95/162,289.47
  6. Step 6: Final answer
    x = 115,567.93

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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.