Home / 142,421.10-213,664.05-83,226.30

Finding the Fourth Proportional to 142,421.10, 213,664.05 and 83,226.30

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Solution

The fourth proportional to 142,421.10, 213,664.05 and 83,226.30 is: 124,858.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,421.10 : 213,664.05 = 83,226.30 : x
  2. Step 2: Convert to fraction form
    142,421.10/213,664.05 = 83,226.30/x
  3. Step 3: Cross multiply
    142,421.10x = 213,664.05 × 83,226.30
  4. Step 4: Simplify right side
    142,421.10x = 17,782,468,324.52
  5. Step 5: Solve for x
    x = 17,782,468,324.52/142,421.10
  6. Step 6: Final answer
    x = 124,858.38

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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.