Home / 158,433.54-218,636.79-85,834.76

Finding the Fourth Proportional to 158,433.54, 218,636.79 and 85,834.76

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Solution

The fourth proportional to 158,433.54, 218,636.79 and 85,834.76 is: 118,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,433.54 : 218,636.79 = 85,834.76 : x
  2. Step 2: Convert to fraction form
    158,433.54/218,636.79 = 85,834.76/x
  3. Step 3: Cross multiply
    158,433.54x = 218,636.79 × 85,834.76
  4. Step 4: Simplify right side
    158,433.54x = 18,766,634,981.76
  5. Step 5: Solve for x
    x = 18,766,634,981.76/158,433.54
  6. Step 6: Final answer
    x = 118,451.15

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1.5x scale

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.