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Finding the Fourth Proportional to 166,615.80, 249,923.70 and 122,438.40

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Solution

The fourth proportional to 166,615.80, 249,923.70 and 122,438.40 is: 183,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,615.80 : 249,923.70 = 122,438.40 : x
  2. Step 2: Convert to fraction form
    166,615.80/249,923.70 = 122,438.40/x
  3. Step 3: Cross multiply
    166,615.80x = 249,923.70 × 122,438.40
  4. Step 4: Simplify right side
    166,615.80x = 30,600,257,950.08
  5. Step 5: Solve for x
    x = 30,600,257,950.08/166,615.80
  6. Step 6: Final answer
    x = 183,657.60

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1.5x scale

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.