Home / 161,838.30-223,337.05-90,216.79

Finding the Fourth Proportional to 161,838.30, 223,337.05 and 90,216.79

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Solution

The fourth proportional to 161,838.30, 223,337.05 and 90,216.79 is: 124,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838.30 : 223,337.05 = 90,216.79 : x
  2. Step 2: Convert to fraction form
    161,838.30/223,337.05 = 90,216.79/x
  3. Step 3: Cross multiply
    161,838.30x = 223,337.05 × 90,216.79
  4. Step 4: Simplify right side
    161,838.30x = 20,148,750,955.18
  5. Step 5: Solve for x
    x = 20,148,750,955.18/161,838.30
  6. Step 6: Final answer
    x = 124,499.27

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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.