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Finding the Fourth Proportional to 153,722.70, 212,105.07 and 93,325.14

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Solution

The fourth proportional to 153,722.70, 212,105.07 and 93,325.14 is: 128,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,722.70 : 212,105.07 = 93,325.14 : x
  2. Step 2: Convert to fraction form
    153,722.70/212,105.07 = 93,325.14/x
  3. Step 3: Cross multiply
    153,722.70x = 212,105.07 × 93,325.14
  4. Step 4: Simplify right side
    153,722.70x = 19,794,735,352.46
  5. Step 5: Solve for x
    x = 19,794,735,352.46/153,722.70
  6. Step 6: Final answer
    x = 128,769.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.