Home / 143,261.71-197,701.21-79,599.51

Finding the Fourth Proportional to 143,261.71, 197,701.21 and 79,599.51

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Solution

The fourth proportional to 143,261.71, 197,701.21 and 79,599.51 is: 109,847.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,261.71 : 197,701.21 = 79,599.51 : x
  2. Step 2: Convert to fraction form
    143,261.71/197,701.21 = 79,599.51/x
  3. Step 3: Cross multiply
    143,261.71x = 197,701.21 × 79,599.51
  4. Step 4: Simplify right side
    143,261.71x = 15,736,919,094.16
  5. Step 5: Solve for x
    x = 15,736,919,094.16/143,261.71
  6. Step 6: Final answer
    x = 109,847.35

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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.