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Finding the Fourth Proportional to 135,501.86, 186,977.16 and 75,057.44

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Solution

The fourth proportional to 135,501.86, 186,977.16 and 75,057.44 is: 103,570.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,501.86 : 186,977.16 = 75,057.44 : x
  2. Step 2: Convert to fraction form
    135,501.86/186,977.16 = 75,057.44/x
  3. Step 3: Cross multiply
    135,501.86x = 186,977.16 × 75,057.44
  4. Step 4: Simplify right side
    135,501.86x = 14,034,026,033.18
  5. Step 5: Solve for x
    x = 14,034,026,033.18/135,501.86
  6. Step 6: Final answer
    x = 103,570.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.