Home / 105,818.24-146,028.76-58,072.40

Finding the Fourth Proportional to 105,818.24, 146,028.76 and 58,072.40

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Solution

The fourth proportional to 105,818.24, 146,028.76 and 58,072.40 is: 80,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,818.24 : 146,028.76 = 58,072.40 : x
  2. Step 2: Convert to fraction form
    105,818.24/146,028.76 = 58,072.40/x
  3. Step 3: Cross multiply
    105,818.24x = 146,028.76 × 58,072.40
  4. Step 4: Simplify right side
    105,818.24x = 8,480,240,562.22
  5. Step 5: Solve for x
    x = 8,480,240,562.22/105,818.24
  6. Step 6: Final answer
    x = 80,139.69

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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.