Home / 161,838.72-223,337.46-90,217.20

Finding the Fourth Proportional to 161,838.72, 223,337.46 and 90,217.20

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Solution

The fourth proportional to 161,838.72, 223,337.46 and 90,217.20 is: 124,499.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838.72 : 223,337.46 = 90,217.20 : x
  2. Step 2: Convert to fraction form
    161,838.72/223,337.46 = 90,217.20/x
  3. Step 3: Cross multiply
    161,838.72x = 223,337.46 × 90,217.20
  4. Step 4: Simplify right side
    161,838.72x = 20,148,880,296.31
  5. Step 5: Solve for x
    x = 20,148,880,296.31/161,838.72
  6. Step 6: Final answer
    x = 124,499.75

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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.