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Finding the Fourth Proportional to 104,204.64, 143,786.16 and 61,756.32

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Solution

The fourth proportional to 104,204.64, 143,786.16 and 61,756.32 is: 85,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,204.64 : 143,786.16 = 61,756.32 : x
  2. Step 2: Convert to fraction form
    104,204.64/143,786.16 = 61,756.32/x
  3. Step 3: Cross multiply
    104,204.64x = 143,786.16 × 61,756.32
  4. Step 4: Simplify right side
    104,204.64x = 8,879,704,108.53
  5. Step 5: Solve for x
    x = 8,879,704,108.53/104,204.64
  6. Step 6: Final answer
    x = 85,214.10

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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.