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Finding the Fourth Proportional to 166,954.60, 249,971.10 and 130,090.60

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Solution

The fourth proportional to 166,954.60, 249,971.10 and 130,090.60 is: 194,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,954.60 : 249,971.10 = 130,090.60 : x
  2. Step 2: Convert to fraction form
    166,954.60/249,971.10 = 130,090.60/x
  3. Step 3: Cross multiply
    166,954.60x = 249,971.10 × 130,090.60
  4. Step 4: Simplify right side
    166,954.60x = 32,518,890,381.66
  5. Step 5: Solve for x
    x = 32,518,890,381.66/166,954.60
  6. Step 6: Final answer
    x = 194,776.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.