Home / 98,742.09-136,263.51-53,419.95

Finding the Fourth Proportional to 98,742.09, 136,263.51 and 53,419.95

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Solution

The fourth proportional to 98,742.09, 136,263.51 and 53,419.95 is: 73,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,742.09 : 136,263.51 = 53,419.95 : x
  2. Step 2: Convert to fraction form
    98,742.09/136,263.51 = 53,419.95/x
  3. Step 3: Cross multiply
    98,742.09x = 136,263.51 × 53,419.95
  4. Step 4: Simplify right side
    98,742.09x = 7,279,189,891.02
  5. Step 5: Solve for x
    x = 7,279,189,891.02/98,742.09
  6. Step 6: Final answer
    x = 73,719.22

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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.