Home / 97,278.08-145,810.20-38,102.72

Finding the Fourth Proportional to 97,278.08, 145,810.20 and 38,102.72

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Solution

The fourth proportional to 97,278.08, 145,810.20 and 38,102.72 is: 57,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,278.08 : 145,810.20 = 38,102.72 : x
  2. Step 2: Convert to fraction form
    97,278.08/145,810.20 = 38,102.72/x
  3. Step 3: Cross multiply
    97,278.08x = 145,810.20 × 38,102.72
  4. Step 4: Simplify right side
    97,278.08x = 5,555,765,223.74
  5. Step 5: Solve for x
    x = 5,555,765,223.74/97,278.08
  6. Step 6: Final answer
    x = 57,112.20

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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.