Home / 136,621.94-188,538.45-75,366.74

Finding the Fourth Proportional to 136,621.94, 188,538.45 and 75,366.74

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Solution

The fourth proportional to 136,621.94, 188,538.45 and 75,366.74 is: 104,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,621.94 : 188,538.45 = 75,366.74 : x
  2. Step 2: Convert to fraction form
    136,621.94/188,538.45 = 75,366.74/x
  3. Step 3: Cross multiply
    136,621.94x = 188,538.45 × 75,366.74
  4. Step 4: Simplify right side
    136,621.94x = 14,209,528,812.50
  5. Step 5: Solve for x
    x = 14,209,528,812.50/136,621.94
  6. Step 6: Final answer
    x = 104,006.20

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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.