Home / 104,621.20-156,931.80-52,133.20

Finding the Fourth Proportional to 104,621.20, 156,931.80 and 52,133.20

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Solution

The fourth proportional to 104,621.20, 156,931.80 and 52,133.20 is: 78,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,621.20 : 156,931.80 = 52,133.20 : x
  2. Step 2: Convert to fraction form
    104,621.20/156,931.80 = 52,133.20/x
  3. Step 3: Cross multiply
    104,621.20x = 156,931.80 × 52,133.20
  4. Step 4: Simplify right side
    104,621.20x = 8,181,356,915.76
  5. Step 5: Solve for x
    x = 8,181,356,915.76/104,621.20
  6. Step 6: Final answer
    x = 78,199.80

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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.