Home / 97,788.90-146,726.55-45,171.30

Finding the Fourth Proportional to 97,788.90, 146,726.55 and 45,171.30

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Solution

The fourth proportional to 97,788.90, 146,726.55 and 45,171.30 is: 67,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,788.90 : 146,726.55 = 45,171.30 : x
  2. Step 2: Convert to fraction form
    97,788.90/146,726.55 = 45,171.30/x
  3. Step 3: Cross multiply
    97,788.90x = 146,726.55 × 45,171.30
  4. Step 4: Simplify right side
    97,788.90x = 6,627,829,008.02
  5. Step 5: Solve for x
    x = 6,627,829,008.02/97,788.90
  6. Step 6: Final answer
    x = 67,776.91

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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.