Home / 123,348.42-170,223.93-75,628.08

Finding the Fourth Proportional to 123,348.42, 170,223.93 and 75,628.08

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Solution

The fourth proportional to 123,348.42, 170,223.93 and 75,628.08 is: 104,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,348.42 : 170,223.93 = 75,628.08 : x
  2. Step 2: Convert to fraction form
    123,348.42/170,223.93 = 75,628.08/x
  3. Step 3: Cross multiply
    123,348.42x = 170,223.93 × 75,628.08
  4. Step 4: Simplify right side
    123,348.42x = 12,873,708,995.95
  5. Step 5: Solve for x
    x = 12,873,708,995.95/123,348.42
  6. Step 6: Final answer
    x = 104,368.66

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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.