Home / 141,929.11-212,652.67-85,650.96

Finding the Fourth Proportional to 141,929.11, 212,652.67 and 85,650.96

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Solution

The fourth proportional to 141,929.11, 212,652.67 and 85,650.96 is: 128,331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,929.11 : 212,652.67 = 85,650.96 : x
  2. Step 2: Convert to fraction form
    141,929.11/212,652.67 = 85,650.96/x
  3. Step 3: Cross multiply
    141,929.11x = 212,652.67 × 85,650.96
  4. Step 4: Simplify right side
    141,929.11x = 18,213,905,332.06
  5. Step 5: Solve for x
    x = 18,213,905,332.06/141,929.11
  6. Step 6: Final answer
    x = 128,331.01

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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.