Home / 166,087.80-249,131.70-91,438.20

Finding the Fourth Proportional to 166,087.80, 249,131.70 and 91,438.20

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Solution

The fourth proportional to 166,087.80, 249,131.70 and 91,438.20 is: 137,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,087.80 : 249,131.70 = 91,438.20 : x
  2. Step 2: Convert to fraction form
    166,087.80/249,131.70 = 91,438.20/x
  3. Step 3: Cross multiply
    166,087.80x = 249,131.70 × 91,438.20
  4. Step 4: Simplify right side
    166,087.80x = 22,780,154,210.94
  5. Step 5: Solve for x
    x = 22,780,154,210.94/166,087.80
  6. Step 6: Final answer
    x = 137,157.30

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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.