Home / 123,269.34-170,111.52-66,680.58

Finding the Fourth Proportional to 123,269.34, 170,111.52 and 66,680.58

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Solution

The fourth proportional to 123,269.34, 170,111.52 and 66,680.58 is: 92,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,269.34 : 170,111.52 = 66,680.58 : x
  2. Step 2: Convert to fraction form
    123,269.34/170,111.52 = 66,680.58/x
  3. Step 3: Cross multiply
    123,269.34x = 170,111.52 × 66,680.58
  4. Step 4: Simplify right side
    123,269.34x = 11,343,134,818.28
  5. Step 5: Solve for x
    x = 11,343,134,818.28/123,269.34
  6. Step 6: Final answer
    x = 92,019.11

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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.