Home / 142,725.42-196,973.07-79,069.14

Finding the Fourth Proportional to 142,725.42, 196,973.07 and 79,069.14

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Solution

The fourth proportional to 142,725.42, 196,973.07 and 79,069.14 is: 109,122.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,725.42 : 196,973.07 = 79,069.14 : x
  2. Step 2: Convert to fraction form
    142,725.42/196,973.07 = 79,069.14/x
  3. Step 3: Cross multiply
    142,725.42x = 196,973.07 × 79,069.14
  4. Step 4: Simplify right side
    142,725.42x = 15,574,490,263.19
  5. Step 5: Solve for x
    x = 15,574,490,263.19/142,725.42
  6. Step 6: Final answer
    x = 109,122.05

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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.