Home / 142,913.04-197,231.82-79,271.40

Finding the Fourth Proportional to 142,913.04, 197,231.82 and 79,271.40

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Solution

The fourth proportional to 142,913.04, 197,231.82 and 79,271.40 is: 109,401.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,913.04 : 197,231.82 = 79,271.40 : x
  2. Step 2: Convert to fraction form
    142,913.04/197,231.82 = 79,271.40/x
  3. Step 3: Cross multiply
    142,913.04x = 197,231.82 × 79,271.40
  4. Step 4: Simplify right side
    142,913.04x = 15,634,842,495.95
  5. Step 5: Solve for x
    x = 15,634,842,495.95/142,913.04
  6. Step 6: Final answer
    x = 109,401.09

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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.