Home / 143,332.74-197,799.31-78,803.08

Finding the Fourth Proportional to 143,332.74, 197,799.31 and 78,803.08

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Solution

The fourth proportional to 143,332.74, 197,799.31 and 78,803.08 is: 108,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332.74 : 197,799.31 = 78,803.08 : x
  2. Step 2: Convert to fraction form
    143,332.74/197,799.31 = 78,803.08/x
  3. Step 3: Cross multiply
    143,332.74x = 197,799.31 × 78,803.08
  4. Step 4: Simplify right side
    143,332.74x = 15,587,194,232.25
  5. Step 5: Solve for x
    x = 15,587,194,232.25/143,332.74
  6. Step 6: Final answer
    x = 108,748.32

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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.