Home / 97,720.10-146,580.15-31,159.70

Finding the Fourth Proportional to 97,720.10, 146,580.15 and 31,159.70

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Solution

The fourth proportional to 97,720.10, 146,580.15 and 31,159.70 is: 46,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,720.10 : 146,580.15 = 31,159.70 : x
  2. Step 2: Convert to fraction form
    97,720.10/146,580.15 = 31,159.70/x
  3. Step 3: Cross multiply
    97,720.10x = 146,580.15 × 31,159.70
  4. Step 4: Simplify right side
    97,720.10x = 4,567,393,499.96
  5. Step 5: Solve for x
    x = 4,567,393,499.96/97,720.10
  6. Step 6: Final answer
    x = 46,739.55

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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.