Home / 107,310.32-148,095.15-61,990.21

Finding the Fourth Proportional to 107,310.32, 148,095.15 and 61,990.21

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Solution

The fourth proportional to 107,310.32, 148,095.15 and 61,990.21 is: 85,550.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,310.32 : 148,095.15 = 61,990.21 : x
  2. Step 2: Convert to fraction form
    107,310.32/148,095.15 = 61,990.21/x
  3. Step 3: Cross multiply
    107,310.32x = 148,095.15 × 61,990.21
  4. Step 4: Simplify right side
    107,310.32x = 9,180,448,708.01
  5. Step 5: Solve for x
    x = 9,180,448,708.01/107,310.32
  6. Step 6: Final answer
    x = 85,550.48

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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.