Home / 142,715.10-196,953.09-79,052.90

Finding the Fourth Proportional to 142,715.10, 196,953.09 and 79,052.90

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Solution

The fourth proportional to 142,715.10, 196,953.09 and 79,052.90 is: 109,096.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,715.10 : 196,953.09 = 79,052.90 : x
  2. Step 2: Convert to fraction form
    142,715.10/196,953.09 = 79,052.90/x
  3. Step 3: Cross multiply
    142,715.10x = 196,953.09 × 79,052.90
  4. Step 4: Simplify right side
    142,715.10x = 15,569,712,928.46
  5. Step 5: Solve for x
    x = 15,569,712,928.46/142,715.10
  6. Step 6: Final answer
    x = 109,096.47

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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.