Home / 102,771.76-154,158.20-31,693.52

Finding the Fourth Proportional to 102,771.76, 154,158.20 and 31,693.52

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Solution

The fourth proportional to 102,771.76, 154,158.20 and 31,693.52 is: 47,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,771.76 : 154,158.20 = 31,693.52 : x
  2. Step 2: Convert to fraction form
    102,771.76/154,158.20 = 31,693.52/x
  3. Step 3: Cross multiply
    102,771.76x = 154,158.20 × 31,693.52
  4. Step 4: Simplify right side
    102,771.76x = 4,885,815,994.86
  5. Step 5: Solve for x
    x = 4,885,815,994.86/102,771.76
  6. Step 6: Final answer
    x = 47,540.45

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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.