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Finding the Fourth Proportional to 142,203.94, 213,341.01 and 42,363.74

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Solution

The fourth proportional to 142,203.94, 213,341.01 and 42,363.74 is: 63,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,203.94 : 213,341.01 = 42,363.74 : x
  2. Step 2: Convert to fraction form
    142,203.94/213,341.01 = 42,363.74/x
  3. Step 3: Cross multiply
    142,203.94x = 213,341.01 × 42,363.74
  4. Step 4: Simplify right side
    142,203.94x = 9,037,923,453.47
  5. Step 5: Solve for x
    x = 9,037,923,453.47/142,203.94
  6. Step 6: Final answer
    x = 63,556.07

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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.