Home / 123,446.10-170,354.77-66,856.34

Finding the Fourth Proportional to 123,446.10, 170,354.77 and 66,856.34

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Solution

The fourth proportional to 123,446.10, 170,354.77 and 66,856.34 is: 92,261.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,446.10 : 170,354.77 = 66,856.34 : x
  2. Step 2: Convert to fraction form
    123,446.10/170,354.77 = 66,856.34/x
  3. Step 3: Cross multiply
    123,446.10x = 170,354.77 × 66,856.34
  4. Step 4: Simplify right side
    123,446.10x = 11,389,296,423.74
  5. Step 5: Solve for x
    x = 11,389,296,423.74/123,446.10
  6. Step 6: Final answer
    x = 92,261.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.