Home / 123,360.42-170,240.52-75,640.08

Finding the Fourth Proportional to 123,360.42, 170,240.52 and 75,640.08

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Solution

The fourth proportional to 123,360.42, 170,240.52 and 75,640.08 is: 104,385.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,360.42 : 170,240.52 = 75,640.08 : x
  2. Step 2: Convert to fraction form
    123,360.42/170,240.52 = 75,640.08/x
  3. Step 3: Cross multiply
    123,360.42x = 170,240.52 × 75,640.08
  4. Step 4: Simplify right side
    123,360.42x = 12,877,006,552.04
  5. Step 5: Solve for x
    x = 12,877,006,552.04/123,360.42
  6. Step 6: Final answer
    x = 104,385.24

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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.