Home / 161,815.84-223,313.42-90,196.38

Finding the Fourth Proportional to 161,815.84, 223,313.42 and 90,196.38

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Solution

The fourth proportional to 161,815.84, 223,313.42 and 90,196.38 is: 124,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,815.84 : 223,313.42 = 90,196.38 : x
  2. Step 2: Convert to fraction form
    161,815.84/223,313.42 = 90,196.38/x
  3. Step 3: Cross multiply
    161,815.84x = 223,313.42 × 90,196.38
  4. Step 4: Simplify right side
    161,815.84x = 20,142,062,089.42
  5. Step 5: Solve for x
    x = 20,142,062,089.42/161,815.84
  6. Step 6: Final answer
    x = 124,475.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.