Home / 97,316.30-145,974.45-80,695.10

Finding the Fourth Proportional to 97,316.30, 145,974.45 and 80,695.10

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Solution

The fourth proportional to 97,316.30, 145,974.45 and 80,695.10 is: 121,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,316.30 : 145,974.45 = 80,695.10 : x
  2. Step 2: Convert to fraction form
    97,316.30/145,974.45 = 80,695.10/x
  3. Step 3: Cross multiply
    97,316.30x = 145,974.45 × 80,695.10
  4. Step 4: Simplify right side
    97,316.30x = 11,779,422,840.20
  5. Step 5: Solve for x
    x = 11,779,422,840.20/97,316.30
  6. Step 6: Final answer
    x = 121,042.65

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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.