Home / 142,487.08-196,721.62-91,520.36

Finding the Fourth Proportional to 142,487.08, 196,721.62 and 91,520.36

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Solution

The fourth proportional to 142,487.08, 196,721.62 and 91,520.36 is: 126,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,487.08 : 196,721.62 = 91,520.36 : x
  2. Step 2: Convert to fraction form
    142,487.08/196,721.62 = 91,520.36/x
  3. Step 3: Cross multiply
    142,487.08x = 196,721.62 × 91,520.36
  4. Step 4: Simplify right side
    142,487.08x = 18,004,033,482.18
  5. Step 5: Solve for x
    x = 18,004,033,482.18/142,487.08
  6. Step 6: Final answer
    x = 126,355.55

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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.