Home / 145,594.10-218,422.20-82,443.80

Finding the Fourth Proportional to 145,594.10, 218,422.20 and 82,443.80

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Solution

The fourth proportional to 145,594.10, 218,422.20 and 82,443.80 is: 123,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,594.10 : 218,422.20 = 82,443.80 : x
  2. Step 2: Convert to fraction form
    145,594.10/218,422.20 = 82,443.80/x
  3. Step 3: Cross multiply
    145,594.10x = 218,422.20 × 82,443.80
  4. Step 4: Simplify right side
    145,594.10x = 18,007,556,172.36
  5. Step 5: Solve for x
    x = 18,007,556,172.36/145,594.10
  6. Step 6: Final answer
    x = 123,683.28

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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.