Home / 123,860.24-170,897.84-72,875.19

Finding the Fourth Proportional to 123,860.24, 170,897.84 and 72,875.19

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Solution

The fourth proportional to 123,860.24, 170,897.84 and 72,875.19 is: 100,550.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,860.24 : 170,897.84 = 72,875.19 : x
  2. Step 2: Convert to fraction form
    123,860.24/170,897.84 = 72,875.19/x
  3. Step 3: Cross multiply
    123,860.24x = 170,897.84 × 72,875.19
  4. Step 4: Simplify right side
    123,860.24x = 12,454,212,560.59
  5. Step 5: Solve for x
    x = 12,454,212,560.59/123,860.24
  6. Step 6: Final answer
    x = 100,550.53

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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.