Home / 166,378.80-249,604.65-66,513.90

Finding the Fourth Proportional to 166,378.80, 249,604.65 and 66,513.90

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Solution

The fourth proportional to 166,378.80, 249,604.65 and 66,513.90 is: 99,785.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,378.80 : 249,604.65 = 66,513.90 : x
  2. Step 2: Convert to fraction form
    166,378.80/249,604.65 = 66,513.90/x
  3. Step 3: Cross multiply
    166,378.80x = 249,604.65 × 66,513.90
  4. Step 4: Simplify right side
    166,378.80x = 16,602,178,729.64
  5. Step 5: Solve for x
    x = 16,602,178,729.64/166,378.80
  6. Step 6: Final answer
    x = 99,785.42

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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.