Home / 142,172.82-196,262.34-93,803.21

Finding the Fourth Proportional to 142,172.82, 196,262.34 and 93,803.21

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Solution

The fourth proportional to 142,172.82, 196,262.34 and 93,803.21 is: 129,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,172.82 : 196,262.34 = 93,803.21 : x
  2. Step 2: Convert to fraction form
    142,172.82/196,262.34 = 93,803.21/x
  3. Step 3: Cross multiply
    142,172.82x = 196,262.34 × 93,803.21
  4. Step 4: Simplify right side
    142,172.82x = 18,410,037,494.11
  5. Step 5: Solve for x
    x = 18,410,037,494.11/142,172.82
  6. Step 6: Final answer
    x = 129,490.56

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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.