Home / 102,537.20-153,640.20-58,031.60

Finding the Fourth Proportional to 102,537.20, 153,640.20 and 58,031.60

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Solution

The fourth proportional to 102,537.20, 153,640.20 and 58,031.60 is: 86,953.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,537.20 : 153,640.20 = 58,031.60 : x
  2. Step 2: Convert to fraction form
    102,537.20/153,640.20 = 58,031.60/x
  3. Step 3: Cross multiply
    102,537.20x = 153,640.20 × 58,031.60
  4. Step 4: Simplify right side
    102,537.20x = 8,915,986,630.32
  5. Step 5: Solve for x
    x = 8,915,986,630.32/102,537.20
  6. Step 6: Final answer
    x = 86,953.68

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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.