Home / 166,426.40-249,639.60-103,440.80

Finding the Fourth Proportional to 166,426.40, 249,639.60 and 103,440.80

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Solution

The fourth proportional to 166,426.40, 249,639.60 and 103,440.80 is: 155,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,426.40 : 249,639.60 = 103,440.80 : x
  2. Step 2: Convert to fraction form
    166,426.40/249,639.60 = 103,440.80/x
  3. Step 3: Cross multiply
    166,426.40x = 249,639.60 × 103,440.80
  4. Step 4: Simplify right side
    166,426.40x = 25,822,919,935.68
  5. Step 5: Solve for x
    x = 25,822,919,935.68/166,426.40
  6. Step 6: Final answer
    x = 155,161.20

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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.