Home / 123,498.27-170,430.99-69,782.21

Finding the Fourth Proportional to 123,498.27, 170,430.99 and 69,782.21

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Solution

The fourth proportional to 123,498.27, 170,430.99 and 69,782.21 is: 96,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,498.27 : 170,430.99 = 69,782.21 : x
  2. Step 2: Convert to fraction form
    123,498.27/170,430.99 = 69,782.21/x
  3. Step 3: Cross multiply
    123,498.27x = 170,430.99 × 69,782.21
  4. Step 4: Simplify right side
    123,498.27x = 11,893,050,659.97
  5. Step 5: Solve for x
    x = 11,893,050,659.97/123,498.27
  6. Step 6: Final answer
    x = 96,301.35

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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.