Home / 98,122.29-135,373.32-55,656.21

Finding the Fourth Proportional to 98,122.29, 135,373.32 and 55,656.21

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Solution

The fourth proportional to 98,122.29, 135,373.32 and 55,656.21 is: 76,785.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,122.29 : 135,373.32 = 55,656.21 : x
  2. Step 2: Convert to fraction form
    98,122.29/135,373.32 = 55,656.21/x
  3. Step 3: Cross multiply
    98,122.29x = 135,373.32 × 55,656.21
  4. Step 4: Simplify right side
    98,122.29x = 7,534,366,642.68
  5. Step 5: Solve for x
    x = 7,534,366,642.68/98,122.29
  6. Step 6: Final answer
    x = 76,785.48

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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.