Home / 166,415.40-249,623.10-129,090.60

Finding the Fourth Proportional to 166,415.40, 249,623.10 and 129,090.60

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Solution

The fourth proportional to 166,415.40, 249,623.10 and 129,090.60 is: 193,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,415.40 : 249,623.10 = 129,090.60 : x
  2. Step 2: Convert to fraction form
    166,415.40/249,623.10 = 129,090.60/x
  3. Step 3: Cross multiply
    166,415.40x = 249,623.10 × 129,090.60
  4. Step 4: Simplify right side
    166,415.40x = 32,223,995,752.86
  5. Step 5: Solve for x
    x = 32,223,995,752.86/166,415.40
  6. Step 6: Final answer
    x = 193,635.90

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1.5x scale

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.