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Finding the Fourth Proportional to 166,078.40, 249,117.60 and 119,422.40

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Solution

The fourth proportional to 166,078.40, 249,117.60 and 119,422.40 is: 179,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,078.40 : 249,117.60 = 119,422.40 : x
  2. Step 2: Convert to fraction form
    166,078.40/249,117.60 = 119,422.40/x
  3. Step 3: Cross multiply
    166,078.40x = 249,117.60 × 119,422.40
  4. Step 4: Simplify right side
    166,078.40x = 29,750,221,674.24
  5. Step 5: Solve for x
    x = 29,750,221,674.24/166,078.40
  6. Step 6: Final answer
    x = 179,133.60

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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.