Home / 142,914.40-197,223.06-79,253.08

Finding the Fourth Proportional to 142,914.40, 197,223.06 and 79,253.08

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Solution

The fourth proportional to 142,914.40, 197,223.06 and 79,253.08 is: 109,369.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,914.40 : 197,223.06 = 79,253.08 : x
  2. Step 2: Convert to fraction form
    142,914.40/197,223.06 = 79,253.08/x
  3. Step 3: Cross multiply
    142,914.40x = 197,223.06 × 79,253.08
  4. Step 4: Simplify right side
    142,914.40x = 15,630,534,952.02
  5. Step 5: Solve for x
    x = 15,630,534,952.02/142,914.40
  6. Step 6: Final answer
    x = 109,369.91

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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.