Home / 104,155.72-143,734.98-56,409.16

Finding the Fourth Proportional to 104,155.72, 143,734.98 and 56,409.16

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Solution

The fourth proportional to 104,155.72, 143,734.98 and 56,409.16 is: 77,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,155.72 : 143,734.98 = 56,409.16 : x
  2. Step 2: Convert to fraction form
    104,155.72/143,734.98 = 56,409.16/x
  3. Step 3: Cross multiply
    104,155.72x = 143,734.98 × 56,409.16
  4. Step 4: Simplify right side
    104,155.72x = 8,107,969,484.42
  5. Step 5: Solve for x
    x = 8,107,969,484.42/104,155.72
  6. Step 6: Final answer
    x = 77,844.69

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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.