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Finding the Fourth Proportional to 137,005.60, 205,216.80 and 137,005.60

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Solution

The fourth proportional to 137,005.60, 205,216.80 and 137,005.60 is: 205,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,005.60 : 205,216.80 = 137,005.60 : x
  2. Step 2: Convert to fraction form
    137,005.60/205,216.80 = 137,005.60/x
  3. Step 3: Cross multiply
    137,005.60x = 205,216.80 × 137,005.60
  4. Step 4: Simplify right side
    137,005.60x = 28,115,850,814.08
  5. Step 5: Solve for x
    x = 28,115,850,814.08/137,005.60
  6. Step 6: Final answer
    x = 205,216.80

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1.5x scale

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.