Home / 166,259.80-249,546.30-87,430.60

Finding the Fourth Proportional to 166,259.80, 249,546.30 and 87,430.60

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Solution

The fourth proportional to 166,259.80, 249,546.30 and 87,430.60 is: 131,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,259.80 : 249,546.30 = 87,430.60 : x
  2. Step 2: Convert to fraction form
    166,259.80/249,546.30 = 87,430.60/x
  3. Step 3: Cross multiply
    166,259.80x = 249,546.30 × 87,430.60
  4. Step 4: Simplify right side
    166,259.80x = 21,817,982,736.78
  5. Step 5: Solve for x
    x = 21,817,982,736.78/166,259.80
  6. Step 6: Final answer
    x = 131,228.25

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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.