Home / 142,218.37-212,864.64-104,763.70

Finding the Fourth Proportional to 142,218.37, 212,864.64 and 104,763.70

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Solution

The fourth proportional to 142,218.37, 212,864.64 and 104,763.70 is: 156,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,218.37 : 212,864.64 = 104,763.70 : x
  2. Step 2: Convert to fraction form
    142,218.37/212,864.64 = 104,763.70/x
  3. Step 3: Cross multiply
    142,218.37x = 212,864.64 × 104,763.70
  4. Step 4: Simplify right side
    142,218.37x = 22,300,487,285.57
  5. Step 5: Solve for x
    x = 22,300,487,285.57/142,218.37
  6. Step 6: Final answer
    x = 156,804.55

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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.