Home / 161,901.94-223,425.39-90,281.74

Finding the Fourth Proportional to 161,901.94, 223,425.39 and 90,281.74

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Solution

The fourth proportional to 161,901.94, 223,425.39 and 90,281.74 is: 124,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,901.94 : 223,425.39 = 90,281.74 : x
  2. Step 2: Convert to fraction form
    161,901.94/223,425.39 = 90,281.74/x
  3. Step 3: Cross multiply
    161,901.94x = 223,425.39 × 90,281.74
  4. Step 4: Simplify right side
    161,901.94x = 20,171,232,969.38
  5. Step 5: Solve for x
    x = 20,171,232,969.38/161,901.94
  6. Step 6: Final answer
    x = 124,589.20

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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.