Home / 131,521.80-197,136.90-56,629.20

Finding the Fourth Proportional to 131,521.80, 197,136.90 and 56,629.20

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Solution

The fourth proportional to 131,521.80, 197,136.90 and 56,629.20 is: 84,881.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,521.80 : 197,136.90 = 56,629.20 : x
  2. Step 2: Convert to fraction form
    131,521.80/197,136.90 = 56,629.20/x
  3. Step 3: Cross multiply
    131,521.80x = 197,136.90 × 56,629.20
  4. Step 4: Simplify right side
    131,521.80x = 11,163,704,937.48
  5. Step 5: Solve for x
    x = 11,163,704,937.48/131,521.80
  6. Step 6: Final answer
    x = 84,881.02

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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.