Home / 102,303.20-153,356.38-52,406.80

Finding the Fourth Proportional to 102,303.20, 153,356.38 and 52,406.80

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Solution

The fourth proportional to 102,303.20, 153,356.38 and 52,406.80 is: 78,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,303.20 : 153,356.38 = 52,406.80 : x
  2. Step 2: Convert to fraction form
    102,303.20/153,356.38 = 52,406.80/x
  3. Step 3: Cross multiply
    102,303.20x = 153,356.38 × 52,406.80
  4. Step 4: Simplify right side
    102,303.20x = 8,036,917,135.38
  5. Step 5: Solve for x
    x = 8,036,917,135.38/102,303.20
  6. Step 6: Final answer
    x = 78,559.78

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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.