Home / 102,681.20-153,856.20-58,175.60

Finding the Fourth Proportional to 102,681.20, 153,856.20 and 58,175.60

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Solution

The fourth proportional to 102,681.20, 153,856.20 and 58,175.60 is: 87,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,681.20 : 153,856.20 = 58,175.60 : x
  2. Step 2: Convert to fraction form
    102,681.20/153,856.20 = 58,175.60/x
  3. Step 3: Cross multiply
    102,681.20x = 153,856.20 × 58,175.60
  4. Step 4: Simplify right side
    102,681.20x = 8,950,676,748.72
  5. Step 5: Solve for x
    x = 8,950,676,748.72/102,681.20
  6. Step 6: Final answer
    x = 87,169.58

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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.