Home / 100,853.40-151,280.10-56,616.60

Finding the Fourth Proportional to 100,853.40, 151,280.10 and 56,616.60

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Solution

The fourth proportional to 100,853.40, 151,280.10 and 56,616.60 is: 84,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,853.40 : 151,280.10 = 56,616.60 : x
  2. Step 2: Convert to fraction form
    100,853.40/151,280.10 = 56,616.60/x
  3. Step 3: Cross multiply
    100,853.40x = 151,280.10 × 56,616.60
  4. Step 4: Simplify right side
    100,853.40x = 8,564,964,909.66
  5. Step 5: Solve for x
    x = 8,564,964,909.66/100,853.40
  6. Step 6: Final answer
    x = 84,924.90

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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.