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Finding the Fourth Proportional to 102,756.40, 154,150.80 and 32,642.80

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Solution

The fourth proportional to 102,756.40, 154,150.80 and 32,642.80 is: 48,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,756.40 : 154,150.80 = 32,642.80 : x
  2. Step 2: Convert to fraction form
    102,756.40/154,150.80 = 32,642.80/x
  3. Step 3: Cross multiply
    102,756.40x = 154,150.80 × 32,642.80
  4. Step 4: Simplify right side
    102,756.40x = 5,031,913,734.24
  5. Step 5: Solve for x
    x = 5,031,913,734.24/102,756.40
  6. Step 6: Final answer
    x = 48,969.35

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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.