Home / 131,427.30-197,140.95-100,323.30

Finding the Fourth Proportional to 131,427.30, 197,140.95 and 100,323.30

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Solution

The fourth proportional to 131,427.30, 197,140.95 and 100,323.30 is: 150,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.30 : 197,140.95 = 100,323.30 : x
  2. Step 2: Convert to fraction form
    131,427.30/197,140.95 = 100,323.30/x
  3. Step 3: Cross multiply
    131,427.30x = 197,140.95 × 100,323.30
  4. Step 4: Simplify right side
    131,427.30x = 19,777,830,669.14
  5. Step 5: Solve for x
    x = 19,777,830,669.14/131,427.30
  6. Step 6: Final answer
    x = 150,484.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.