Home / 104,621.28-156,868.74-42,218.88

Finding the Fourth Proportional to 104,621.28, 156,868.74 and 42,218.88

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Solution

The fourth proportional to 104,621.28, 156,868.74 and 42,218.88 is: 63,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,621.28 : 156,868.74 = 42,218.88 : x
  2. Step 2: Convert to fraction form
    104,621.28/156,868.74 = 42,218.88/x
  3. Step 3: Cross multiply
    104,621.28x = 156,868.74 × 42,218.88
  4. Step 4: Simplify right side
    104,621.28x = 6,622,822,509.81
  5. Step 5: Solve for x
    x = 6,622,822,509.81/104,621.28
  6. Step 6: Final answer
    x = 63,302.82

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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.