Home / 142,983.34-197,340.50-79,341.64

Finding the Fourth Proportional to 142,983.34, 197,340.50 and 79,341.64

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Solution

The fourth proportional to 142,983.34, 197,340.50 and 79,341.64 is: 109,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,983.34 : 197,340.50 = 79,341.64 : x
  2. Step 2: Convert to fraction form
    142,983.34/197,340.50 = 79,341.64/x
  3. Step 3: Cross multiply
    142,983.34x = 197,340.50 × 79,341.64
  4. Step 4: Simplify right side
    142,983.34x = 15,657,318,908.42
  5. Step 5: Solve for x
    x = 15,657,318,908.42/142,983.34
  6. Step 6: Final answer
    x = 109,504.50

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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.