Home / 166,965.60-230,412-90,486.90

Finding the Fourth Proportional to 166,965.60, 230,412 and 90,486.90

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Solution

The fourth proportional to 166,965.60, 230,412 and 90,486.90 is: 124,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,965.60 : 230,412 = 90,486.90 : x
  2. Step 2: Convert to fraction form
    166,965.60/230,412 = 90,486.90/x
  3. Step 3: Cross multiply
    166,965.60x = 230,412 × 90,486.90
  4. Step 4: Simplify right side
    166,965.60x = 20,849,267,602.80
  5. Step 5: Solve for x
    x = 20,849,267,602.80/166,965.60
  6. Step 6: Final answer
    x = 124,871.64

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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.