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Finding the Fourth Proportional to 105,625.87, 158,332.12 and 66,210.64

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Solution

The fourth proportional to 105,625.87, 158,332.12 and 66,210.64 is: 99,249.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,625.87 : 158,332.12 = 66,210.64 : x
  2. Step 2: Convert to fraction form
    105,625.87/158,332.12 = 66,210.64/x
  3. Step 3: Cross multiply
    105,625.87x = 158,332.12 × 66,210.64
  4. Step 4: Simplify right side
    105,625.87x = 10,483,270,997.76
  5. Step 5: Solve for x
    x = 10,483,270,997.76/105,625.87
  6. Step 6: Final answer
    x = 99,249.09

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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.