Home / 102,302.20-153,354.88-52,405.80

Finding the Fourth Proportional to 102,302.20, 153,354.88 and 52,405.80

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Solution

The fourth proportional to 102,302.20, 153,354.88 and 52,405.80 is: 78,558.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,302.20 : 153,354.88 = 52,405.80 : x
  2. Step 2: Convert to fraction form
    102,302.20/153,354.88 = 52,405.80/x
  3. Step 3: Cross multiply
    102,302.20x = 153,354.88 × 52,405.80
  4. Step 4: Simplify right side
    102,302.20x = 8,036,685,170.30
  5. Step 5: Solve for x
    x = 8,036,685,170.30/102,302.20
  6. Step 6: Final answer
    x = 78,558.28

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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.