Home / 149,718.13-206,645.77-98,740.07

Finding the Fourth Proportional to 149,718.13, 206,645.77 and 98,740.07

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Solution

The fourth proportional to 149,718.13, 206,645.77 and 98,740.07 is: 136,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,718.13 : 206,645.77 = 98,740.07 : x
  2. Step 2: Convert to fraction form
    149,718.13/206,645.77 = 98,740.07/x
  3. Step 3: Cross multiply
    149,718.13x = 206,645.77 × 98,740.07
  4. Step 4: Simplify right side
    149,718.13x = 20,404,217,301.30
  5. Step 5: Solve for x
    x = 20,404,217,301.30/149,718.13
  6. Step 6: Final answer
    x = 136,284.21

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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.