Home / 123,070.91-169,869.45-80,157.34

Finding the Fourth Proportional to 123,070.91, 169,869.45 and 80,157.34

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Solution

The fourth proportional to 123,070.91, 169,869.45 and 80,157.34 is: 110,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,070.91 : 169,869.45 = 80,157.34 : x
  2. Step 2: Convert to fraction form
    123,070.91/169,869.45 = 80,157.34/x
  3. Step 3: Cross multiply
    123,070.91x = 169,869.45 × 80,157.34
  4. Step 4: Simplify right side
    123,070.91x = 13,616,283,259.26
  5. Step 5: Solve for x
    x = 13,616,283,259.26/123,070.91
  6. Step 6: Final answer
    x = 110,637.71

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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.