Home / 166,038.30-249,177.11-66,140.69

Finding the Fourth Proportional to 166,038.30, 249,177.11 and 66,140.69

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Solution

The fourth proportional to 166,038.30, 249,177.11 and 66,140.69 is: 99,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,038.30 : 249,177.11 = 66,140.69 : x
  2. Step 2: Convert to fraction form
    166,038.30/249,177.11 = 66,140.69/x
  3. Step 3: Cross multiply
    166,038.30x = 249,177.11 × 66,140.69
  4. Step 4: Simplify right side
    166,038.30x = 16,480,744,411.02
  5. Step 5: Solve for x
    x = 16,480,744,411.02/166,038.30
  6. Step 6: Final answer
    x = 99,258.69

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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.