Home / 103,962.64-143,468.34-56,215.87

Finding the Fourth Proportional to 103,962.64, 143,468.34 and 56,215.87

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Solution

The fourth proportional to 103,962.64, 143,468.34 and 56,215.87 is: 77,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,962.64 : 143,468.34 = 56,215.87 : x
  2. Step 2: Convert to fraction form
    103,962.64/143,468.34 = 56,215.87/x
  3. Step 3: Cross multiply
    103,962.64x = 143,468.34 × 56,215.87
  4. Step 4: Simplify right side
    103,962.64x = 8,065,197,550.56
  5. Step 5: Solve for x
    x = 8,065,197,550.56/103,962.64
  6. Step 6: Final answer
    x = 77,577.85

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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.