Home / 105,458.06-145,532.14-57,711.44

Finding the Fourth Proportional to 105,458.06, 145,532.14 and 57,711.44

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Solution

The fourth proportional to 105,458.06, 145,532.14 and 57,711.44 is: 79,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,458.06 : 145,532.14 = 57,711.44 : x
  2. Step 2: Convert to fraction form
    105,458.06/145,532.14 = 57,711.44/x
  3. Step 3: Cross multiply
    105,458.06x = 145,532.14 × 57,711.44
  4. Step 4: Simplify right side
    105,458.06x = 8,398,869,365.68
  5. Step 5: Solve for x
    x = 8,398,869,365.68/105,458.06
  6. Step 6: Final answer
    x = 79,641.80

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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.