Home / 145,655.06-201,007.78-81,995.18

Finding the Fourth Proportional to 145,655.06, 201,007.78 and 81,995.18

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Solution

The fourth proportional to 145,655.06, 201,007.78 and 81,995.18 is: 113,155.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655.06 : 201,007.78 = 81,995.18 : x
  2. Step 2: Convert to fraction form
    145,655.06/201,007.78 = 81,995.18/x
  3. Step 3: Cross multiply
    145,655.06x = 201,007.78 × 81,995.18
  4. Step 4: Simplify right side
    145,655.06x = 16,481,667,892.47
  5. Step 5: Solve for x
    x = 16,481,667,892.47/145,655.06
  6. Step 6: Final answer
    x = 113,155.48

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1.5x scale

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.