Home / 105,273.90-145,271.79-57,517.74

Finding the Fourth Proportional to 105,273.90, 145,271.79 and 57,517.74

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Solution

The fourth proportional to 105,273.90, 145,271.79 and 57,517.74 is: 79,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,273.90 : 145,271.79 = 57,517.74 : x
  2. Step 2: Convert to fraction form
    105,273.90/145,271.79 = 57,517.74/x
  3. Step 3: Cross multiply
    105,273.90x = 145,271.79 × 57,517.74
  4. Step 4: Simplify right side
    105,273.90x = 8,355,705,046.55
  5. Step 5: Solve for x
    x = 8,355,705,046.55/105,273.90
  6. Step 6: Final answer
    x = 79,371.10

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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.