Home / 142,224.82-196,275.96-81,795.44

Finding the Fourth Proportional to 142,224.82, 196,275.96 and 81,795.44

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Solution

The fourth proportional to 142,224.82, 196,275.96 and 81,795.44 is: 112,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,224.82 : 196,275.96 = 81,795.44 : x
  2. Step 2: Convert to fraction form
    142,224.82/196,275.96 = 81,795.44/x
  3. Step 3: Cross multiply
    142,224.82x = 196,275.96 × 81,795.44
  4. Step 4: Simplify right side
    142,224.82x = 16,054,478,509.62
  5. Step 5: Solve for x
    x = 16,054,478,509.62/142,224.82
  6. Step 6: Final answer
    x = 112,880.99

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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.