Home / 123,455.70-170,363.40-69,740.52

Finding the Fourth Proportional to 123,455.70, 170,363.40 and 69,740.52

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Solution

The fourth proportional to 123,455.70, 170,363.40 and 69,740.52 is: 96,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,455.70 : 170,363.40 = 69,740.52 : x
  2. Step 2: Convert to fraction form
    123,455.70/170,363.40 = 69,740.52/x
  3. Step 3: Cross multiply
    123,455.70x = 170,363.40 × 69,740.52
  4. Step 4: Simplify right side
    123,455.70x = 11,881,232,104.97
  5. Step 5: Solve for x
    x = 11,881,232,104.97/123,455.70
  6. Step 6: Final answer
    x = 96,238.83

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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.