Home / 145,217.10-217,832.05-82,036.30

Finding the Fourth Proportional to 145,217.10, 217,832.05 and 82,036.30

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Solution

The fourth proportional to 145,217.10, 217,832.05 and 82,036.30 is: 123,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,217.10 : 217,832.05 = 82,036.30 : x
  2. Step 2: Convert to fraction form
    145,217.10/217,832.05 = 82,036.30/x
  3. Step 3: Cross multiply
    145,217.10x = 217,832.05 × 82,036.30
  4. Step 4: Simplify right side
    145,217.10x = 17,870,135,403.42
  5. Step 5: Solve for x
    x = 17,870,135,403.42/145,217.10
  6. Step 6: Final answer
    x = 123,058.07

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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.