Home / 123,918.93-170,967.74-72,224.23

Finding the Fourth Proportional to 123,918.93, 170,967.74 and 72,224.23

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Solution

The fourth proportional to 123,918.93, 170,967.74 and 72,224.23 is: 99,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,918.93 : 170,967.74 = 72,224.23 : x
  2. Step 2: Convert to fraction form
    123,918.93/170,967.74 = 72,224.23/x
  3. Step 3: Cross multiply
    123,918.93x = 170,967.74 × 72,224.23
  4. Step 4: Simplify right side
    123,918.93x = 12,348,013,770.61
  5. Step 5: Solve for x
    x = 12,348,013,770.61/123,918.93
  6. Step 6: Final answer
    x = 99,645.90

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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.