Home / 403,475.10-605,037.69-137,164.20

Finding the Fourth Proportional to 403,475.10, 605,037.69 and 137,164.20

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Solution

The fourth proportional to 403,475.10, 605,037.69 and 137,164.20 is: 205,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,475.10 : 605,037.69 = 137,164.20 : x
  2. Step 2: Convert to fraction form
    403,475.10/605,037.69 = 137,164.20/x
  3. Step 3: Cross multiply
    403,475.10x = 605,037.69 × 137,164.20
  4. Step 4: Simplify right side
    403,475.10x = 82,989,510,718.70
  5. Step 5: Solve for x
    x = 82,989,510,718.70/403,475.10
  6. Step 6: Final answer
    x = 205,686.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.