Home / 98,057.48-135,154.86-75,079.40

Finding the Fourth Proportional to 98,057.48, 135,154.86 and 75,079.40

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Solution

The fourth proportional to 98,057.48, 135,154.86 and 75,079.40 is: 103,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,057.48 : 135,154.86 = 75,079.40 : x
  2. Step 2: Convert to fraction form
    98,057.48/135,154.86 = 75,079.40/x
  3. Step 3: Cross multiply
    98,057.48x = 135,154.86 × 75,079.40
  4. Step 4: Simplify right side
    98,057.48x = 10,147,345,795.88
  5. Step 5: Solve for x
    x = 10,147,345,795.88/98,057.48
  6. Step 6: Final answer
    x = 103,483.65

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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.