Home / 142,929.84-197,236.40-79,266.26

Finding the Fourth Proportional to 142,929.84, 197,236.40 and 79,266.26

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Solution

The fourth proportional to 142,929.84, 197,236.40 and 79,266.26 is: 109,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,929.84 : 197,236.40 = 79,266.26 : x
  2. Step 2: Convert to fraction form
    142,929.84/197,236.40 = 79,266.26/x
  3. Step 3: Cross multiply
    142,929.84x = 197,236.40 × 79,266.26
  4. Step 4: Simplify right side
    142,929.84x = 15,634,191,763.86
  5. Step 5: Solve for x
    x = 15,634,191,763.86/142,929.84
  6. Step 6: Final answer
    x = 109,383.68

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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.