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Finding the Fourth Proportional to 166,461.80, 249,686.20 and 91,730.12

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Solution

The fourth proportional to 166,461.80, 249,686.20 and 91,730.12 is: 137,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,461.80 : 249,686.20 = 91,730.12 : x
  2. Step 2: Convert to fraction form
    166,461.80/249,686.20 = 91,730.12/x
  3. Step 3: Cross multiply
    166,461.80x = 249,686.20 × 91,730.12
  4. Step 4: Simplify right side
    166,461.80x = 22,903,745,088.34
  5. Step 5: Solve for x
    x = 22,903,745,088.34/166,461.80
  6. Step 6: Final answer
    x = 137,591.60

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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.