Home / 123,031.26-169,783.14-66,442.63

Finding the Fourth Proportional to 123,031.26, 169,783.14 and 66,442.63

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Solution

The fourth proportional to 123,031.26, 169,783.14 and 66,442.63 is: 91,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,031.26 : 169,783.14 = 66,442.63 : x
  2. Step 2: Convert to fraction form
    123,031.26/169,783.14 = 66,442.63/x
  3. Step 3: Cross multiply
    123,031.26x = 169,783.14 × 66,442.63
  4. Step 4: Simplify right side
    123,031.26x = 11,280,838,351.26
  5. Step 5: Solve for x
    x = 11,280,838,351.26/123,031.26
  6. Step 6: Final answer
    x = 91,690.83

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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.