Home / 131,396.59-197,122.63-42,643.23

Finding the Fourth Proportional to 131,396.59, 197,122.63 and 42,643.23

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Solution

The fourth proportional to 131,396.59, 197,122.63 and 42,643.23 is: 63,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,396.59 : 197,122.63 = 42,643.23 : x
  2. Step 2: Convert to fraction form
    131,396.59/197,122.63 = 42,643.23/x
  3. Step 3: Cross multiply
    131,396.59x = 197,122.63 × 42,643.23
  4. Step 4: Simplify right side
    131,396.59x = 8,405,946,366.75
  5. Step 5: Solve for x
    x = 8,405,946,366.75/131,396.59
  6. Step 6: Final answer
    x = 63,973.85

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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.