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Finding the Fourth Proportional to 166,969.60, 230,417.54 and 90,490.88

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Solution

The fourth proportional to 166,969.60, 230,417.54 and 90,490.88 is: 124,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,969.60 : 230,417.54 = 90,490.88 : x
  2. Step 2: Convert to fraction form
    166,969.60/230,417.54 = 90,490.88/x
  3. Step 3: Cross multiply
    166,969.60x = 230,417.54 × 90,490.88
  4. Step 4: Simplify right side
    166,969.60x = 20,850,685,962.04
  5. Step 5: Solve for x
    x = 20,850,685,962.04/166,969.60
  6. Step 6: Final answer
    x = 124,877.14

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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.