Home / 170,935.70-256,403.55-82,362.20

Finding the Fourth Proportional to 170,935.70, 256,403.55 and 82,362.20

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Solution

The fourth proportional to 170,935.70, 256,403.55 and 82,362.20 is: 123,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,935.70 : 256,403.55 = 82,362.20 : x
  2. Step 2: Convert to fraction form
    170,935.70/256,403.55 = 82,362.20/x
  3. Step 3: Cross multiply
    170,935.70x = 256,403.55 × 82,362.20
  4. Step 4: Simplify right side
    170,935.70x = 21,117,960,465.81
  5. Step 5: Solve for x
    x = 21,117,960,465.81/170,935.70
  6. Step 6: Final answer
    x = 123,543.30

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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.