Home / 98,581.26-136,066.32-56,164.80

Finding the Fourth Proportional to 98,581.26, 136,066.32 and 56,164.80

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Solution

The fourth proportional to 98,581.26, 136,066.32 and 56,164.80 is: 77,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,581.26 : 136,066.32 = 56,164.80 : x
  2. Step 2: Convert to fraction form
    98,581.26/136,066.32 = 56,164.80/x
  3. Step 3: Cross multiply
    98,581.26x = 136,066.32 × 56,164.80
  4. Step 4: Simplify right side
    98,581.26x = 7,642,137,649.54
  5. Step 5: Solve for x
    x = 7,642,137,649.54/98,581.26
  6. Step 6: Final answer
    x = 77,521.20

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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.