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Finding the Fourth Proportional to 161,692.80, 223,152.48 and 90,084.48

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Solution

The fourth proportional to 161,692.80, 223,152.48 and 90,084.48 is: 124,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,692.80 : 223,152.48 = 90,084.48 : x
  2. Step 2: Convert to fraction form
    161,692.80/223,152.48 = 90,084.48/x
  3. Step 3: Cross multiply
    161,692.80x = 223,152.48 × 90,084.48
  4. Step 4: Simplify right side
    161,692.80x = 20,102,575,121.51
  5. Step 5: Solve for x
    x = 20,102,575,121.51/161,692.80
  6. Step 6: Final answer
    x = 124,325.73

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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.