Home / 161,795.07-223,277.51-90,173.66

Finding the Fourth Proportional to 161,795.07, 223,277.51 and 90,173.66

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Solution

The fourth proportional to 161,795.07, 223,277.51 and 90,173.66 is: 124,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,795.07 : 223,277.51 = 90,173.66 : x
  2. Step 2: Convert to fraction form
    161,795.07/223,277.51 = 90,173.66/x
  3. Step 3: Cross multiply
    161,795.07x = 223,277.51 × 90,173.66
  4. Step 4: Simplify right side
    161,795.07x = 20,133,749,381.43
  5. Step 5: Solve for x
    x = 20,133,749,381.43/161,795.07
  6. Step 6: Final answer
    x = 124,439.82

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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.