Home / 166,117.30-249,212.40-53,778.40

Finding the Fourth Proportional to 166,117.30, 249,212.40 and 53,778.40

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Solution

The fourth proportional to 166,117.30, 249,212.40 and 53,778.40 is: 80,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,117.30 : 249,212.40 = 53,778.40 : x
  2. Step 2: Convert to fraction form
    166,117.30/249,212.40 = 53,778.40/x
  3. Step 3: Cross multiply
    166,117.30x = 249,212.40 × 53,778.40
  4. Step 4: Simplify right side
    166,117.30x = 13,402,244,132.16
  5. Step 5: Solve for x
    x = 13,402,244,132.16/166,117.30
  6. Step 6: Final answer
    x = 80,679.40

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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.