Home / 161,817.09-223,315.15-90,197.63

Finding the Fourth Proportional to 161,817.09, 223,315.15 and 90,197.63

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Solution

The fourth proportional to 161,817.09, 223,315.15 and 90,197.63 is: 124,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,817.09 : 223,315.15 = 90,197.63 : x
  2. Step 2: Convert to fraction form
    161,817.09/223,315.15 = 90,197.63/x
  3. Step 3: Cross multiply
    161,817.09x = 223,315.15 × 90,197.63
  4. Step 4: Simplify right side
    161,817.09x = 20,142,496,822.11
  5. Step 5: Solve for x
    x = 20,142,496,822.11/161,817.09
  6. Step 6: Final answer
    x = 124,476.94

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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.