Home / 155,165.68-214,152.96-91,510.48

Finding the Fourth Proportional to 155,165.68, 214,152.96 and 91,510.48

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Solution

The fourth proportional to 155,165.68, 214,152.96 and 91,510.48 is: 126,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,165.68 : 214,152.96 = 91,510.48 : x
  2. Step 2: Convert to fraction form
    155,165.68/214,152.96 = 91,510.48/x
  3. Step 3: Cross multiply
    155,165.68x = 214,152.96 × 91,510.48
  4. Step 4: Simplify right side
    155,165.68x = 19,597,240,163.02
  5. Step 5: Solve for x
    x = 19,597,240,163.02/155,165.68
  6. Step 6: Final answer
    x = 126,298.81

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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.