Home / 107,785.74-148,744.32-62,490

Finding the Fourth Proportional to 107,785.74, 148,744.32 and 62,490

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Solution

The fourth proportional to 107,785.74, 148,744.32 and 62,490 is: 86,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,785.74 : 148,744.32 = 62,490 : x
  2. Step 2: Convert to fraction form
    107,785.74/148,744.32 = 62,490/x
  3. Step 3: Cross multiply
    107,785.74x = 148,744.32 × 62,490
  4. Step 4: Simplify right side
    107,785.74x = 9,295,032,556.80
  5. Step 5: Solve for x
    x = 9,295,032,556.80/107,785.74
  6. Step 6: Final answer
    x = 86,236.20

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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.