Home / 142,852.20-197,122.77-79,184.58

Finding the Fourth Proportional to 142,852.20, 197,122.77 and 79,184.58

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Solution

The fourth proportional to 142,852.20, 197,122.77 and 79,184.58 is: 109,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,852.20 : 197,122.77 = 79,184.58 : x
  2. Step 2: Convert to fraction form
    142,852.20/197,122.77 = 79,184.58/x
  3. Step 3: Cross multiply
    142,852.20x = 197,122.77 × 79,184.58
  4. Step 4: Simplify right side
    142,852.20x = 15,609,083,750.89
  5. Step 5: Solve for x
    x = 15,609,083,750.89/142,852.20
  6. Step 6: Final answer
    x = 109,267.37

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1.5x scale

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.