Home / 136,220.79-187,985.62-75,793.98

Finding the Fourth Proportional to 136,220.79, 187,985.62 and 75,793.98

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Solution

The fourth proportional to 136,220.79, 187,985.62 and 75,793.98 is: 104,596.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,220.79 : 187,985.62 = 75,793.98 : x
  2. Step 2: Convert to fraction form
    136,220.79/187,985.62 = 75,793.98/x
  3. Step 3: Cross multiply
    136,220.79x = 187,985.62 × 75,793.98
  4. Step 4: Simplify right side
    136,220.79x = 14,248,178,322.57
  5. Step 5: Solve for x
    x = 14,248,178,322.57/136,220.79
  6. Step 6: Final answer
    x = 104,596.21

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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.