Home / 166,409.40-249,242.58-128,713.08

Finding the Fourth Proportional to 166,409.40, 249,242.58 and 128,713.08

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Solution

The fourth proportional to 166,409.40, 249,242.58 and 128,713.08 is: 192,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,409.40 : 249,242.58 = 128,713.08 : x
  2. Step 2: Convert to fraction form
    166,409.40/249,242.58 = 128,713.08/x
  3. Step 3: Cross multiply
    166,409.40x = 249,242.58 × 128,713.08
  4. Step 4: Simplify right side
    166,409.40x = 32,080,780,138.95
  5. Step 5: Solve for x
    x = 32,080,780,138.95/166,409.40
  6. Step 6: Final answer
    x = 192,782.26

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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.