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Finding the Fourth Proportional to 166,617.30, 249,962.40 and 66,752.40

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Solution

The fourth proportional to 166,617.30, 249,962.40 and 66,752.40 is: 100,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,617.30 : 249,962.40 = 66,752.40 : x
  2. Step 2: Convert to fraction form
    166,617.30/249,962.40 = 66,752.40/x
  3. Step 3: Cross multiply
    166,617.30x = 249,962.40 × 66,752.40
  4. Step 4: Simplify right side
    166,617.30x = 16,685,590,109.76
  5. Step 5: Solve for x
    x = 16,685,590,109.76/166,617.30
  6. Step 6: Final answer
    x = 100,143.20

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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.