Home / 105,740.11-145,922.07-57,993.80

Finding the Fourth Proportional to 105,740.11, 145,922.07 and 57,993.80

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Solution

The fourth proportional to 105,740.11, 145,922.07 and 57,993.80 is: 80,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,740.11 : 145,922.07 = 57,993.80 : x
  2. Step 2: Convert to fraction form
    105,740.11/145,922.07 = 57,993.80/x
  3. Step 3: Cross multiply
    105,740.11x = 145,922.07 × 57,993.80
  4. Step 4: Simplify right side
    105,740.11x = 8,462,574,996.78
  5. Step 5: Solve for x
    x = 8,462,574,996.78/105,740.11
  6. Step 6: Final answer
    x = 80,031.84

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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.