Home / 145,684.28-218,468.97-70,782.23

Finding the Fourth Proportional to 145,684.28, 218,468.97 and 70,782.23

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Solution

The fourth proportional to 145,684.28, 218,468.97 and 70,782.23 is: 106,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,684.28 : 218,468.97 = 70,782.23 : x
  2. Step 2: Convert to fraction form
    145,684.28/218,468.97 = 70,782.23/x
  3. Step 3: Cross multiply
    145,684.28x = 218,468.97 × 70,782.23
  4. Step 4: Simplify right side
    145,684.28x = 15,463,719,790.06
  5. Step 5: Solve for x
    x = 15,463,719,790.06/145,684.28
  6. Step 6: Final answer
    x = 106,145.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.