Home / 98,386.08-135,743.76-58,103.16

Finding the Fourth Proportional to 98,386.08, 135,743.76 and 58,103.16

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Solution

The fourth proportional to 98,386.08, 135,743.76 and 58,103.16 is: 80,165.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,386.08 : 135,743.76 = 58,103.16 : x
  2. Step 2: Convert to fraction form
    98,386.08/135,743.76 = 58,103.16/x
  3. Step 3: Cross multiply
    98,386.08x = 135,743.76 × 58,103.16
  4. Step 4: Simplify right side
    98,386.08x = 7,887,141,406.28
  5. Step 5: Solve for x
    x = 7,887,141,406.28/98,386.08
  6. Step 6: Final answer
    x = 80,165.22

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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.