Home / 166,133.90-249,258.45-72,706.70

Finding the Fourth Proportional to 166,133.90, 249,258.45 and 72,706.70

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Solution

The fourth proportional to 166,133.90, 249,258.45 and 72,706.70 is: 109,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,133.90 : 249,258.45 = 72,706.70 : x
  2. Step 2: Convert to fraction form
    166,133.90/249,258.45 = 72,706.70/x
  3. Step 3: Cross multiply
    166,133.90x = 249,258.45 × 72,706.70
  4. Step 4: Simplify right side
    166,133.90x = 18,122,759,346.62
  5. Step 5: Solve for x
    x = 18,122,759,346.62/166,133.90
  6. Step 6: Final answer
    x = 109,085.26

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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.