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Finding the Fourth Proportional to 166,537.80, 249,806.70 and 77,964.30

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Solution

The fourth proportional to 166,537.80, 249,806.70 and 77,964.30 is: 116,946.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,537.80 : 249,806.70 = 77,964.30 : x
  2. Step 2: Convert to fraction form
    166,537.80/249,806.70 = 77,964.30/x
  3. Step 3: Cross multiply
    166,537.80x = 249,806.70 × 77,964.30
  4. Step 4: Simplify right side
    166,537.80x = 19,476,004,500.81
  5. Step 5: Solve for x
    x = 19,476,004,500.81/166,537.80
  6. Step 6: Final answer
    x = 116,946.45

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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.