Home / 105,818.39-146,028.79-58,070.71

Finding the Fourth Proportional to 105,818.39, 146,028.79 and 58,070.71

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Solution

The fourth proportional to 105,818.39, 146,028.79 and 58,070.71 is: 80,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,818.39 : 146,028.79 = 58,070.71 : x
  2. Step 2: Convert to fraction form
    105,818.39/146,028.79 = 58,070.71/x
  3. Step 3: Cross multiply
    105,818.39x = 146,028.79 × 58,070.71
  4. Step 4: Simplify right side
    105,818.39x = 8,479,995,515.74
  5. Step 5: Solve for x
    x = 8,479,995,515.74/105,818.39
  6. Step 6: Final answer
    x = 80,137.26

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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.