Home / 161,897.53-223,402.30-90,270.85

Finding the Fourth Proportional to 161,897.53, 223,402.30 and 90,270.85

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Solution

The fourth proportional to 161,897.53, 223,402.30 and 90,270.85 is: 124,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,897.53 : 223,402.30 = 90,270.85 : x
  2. Step 2: Convert to fraction form
    161,897.53/223,402.30 = 90,270.85/x
  3. Step 3: Cross multiply
    161,897.53x = 223,402.30 × 90,270.85
  4. Step 4: Simplify right side
    161,897.53x = 20,166,715,512.96
  5. Step 5: Solve for x
    x = 20,166,715,512.96/161,897.53
  6. Step 6: Final answer
    x = 124,564.69

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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.