Home / 97,786.68-134,947.56-63,816.90

Finding the Fourth Proportional to 97,786.68, 134,947.56 and 63,816.90

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Solution

The fourth proportional to 97,786.68, 134,947.56 and 63,816.90 is: 88,068.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,786.68 : 134,947.56 = 63,816.90 : x
  2. Step 2: Convert to fraction form
    97,786.68/134,947.56 = 63,816.90/x
  3. Step 3: Cross multiply
    97,786.68x = 134,947.56 × 63,816.90
  4. Step 4: Simplify right side
    97,786.68x = 8,611,934,941.76
  5. Step 5: Solve for x
    x = 8,611,934,941.76/97,786.68
  6. Step 6: Final answer
    x = 88,068.59

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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.