Home / 123,026.42-169,804.05-80,560.28

Finding the Fourth Proportional to 123,026.42, 169,804.05 and 80,560.28

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Solution

The fourth proportional to 123,026.42, 169,804.05 and 80,560.28 is: 111,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,026.42 : 169,804.05 = 80,560.28 : x
  2. Step 2: Convert to fraction form
    123,026.42/169,804.05 = 80,560.28/x
  3. Step 3: Cross multiply
    123,026.42x = 169,804.05 × 80,560.28
  4. Step 4: Simplify right side
    123,026.42x = 13,679,461,813.13
  5. Step 5: Solve for x
    x = 13,679,461,813.13/123,026.42
  6. Step 6: Final answer
    x = 111,191.25

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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.