Home / 143,366.04-197,850.20-78,840.20

Finding the Fourth Proportional to 143,366.04, 197,850.20 and 78,840.20

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Solution

The fourth proportional to 143,366.04, 197,850.20 and 78,840.20 is: 108,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,366.04 : 197,850.20 = 78,840.20 : x
  2. Step 2: Convert to fraction form
    143,366.04/197,850.20 = 78,840.20/x
  3. Step 3: Cross multiply
    143,366.04x = 197,850.20 × 78,840.20
  4. Step 4: Simplify right side
    143,366.04x = 15,598,549,338.04
  5. Step 5: Solve for x
    x = 15,598,549,338.04/143,366.04
  6. Step 6: Final answer
    x = 108,802.26

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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.