Home / 102,320.64-153,277.56-80,029.80

Finding the Fourth Proportional to 102,320.64, 153,277.56 and 80,029.80

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Solution

The fourth proportional to 102,320.64, 153,277.56 and 80,029.80 is: 119,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,320.64 : 153,277.56 = 80,029.80 : x
  2. Step 2: Convert to fraction form
    102,320.64/153,277.56 = 80,029.80/x
  3. Step 3: Cross multiply
    102,320.64x = 153,277.56 × 80,029.80
  4. Step 4: Simplify right side
    102,320.64x = 12,266,772,471.29
  5. Step 5: Solve for x
    x = 12,266,772,471.29/102,320.64
  6. Step 6: Final answer
    x = 119,885.61

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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.