Home / 104,162.40-143,744.06-56,415.74

Finding the Fourth Proportional to 104,162.40, 143,744.06 and 56,415.74

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Solution

The fourth proportional to 104,162.40, 143,744.06 and 56,415.74 is: 77,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,162.40 : 143,744.06 = 56,415.74 : x
  2. Step 2: Convert to fraction form
    104,162.40/143,744.06 = 56,415.74/x
  3. Step 3: Cross multiply
    104,162.40x = 143,744.06 × 56,415.74
  4. Step 4: Simplify right side
    104,162.40x = 8,109,427,515.50
  5. Step 5: Solve for x
    x = 8,109,427,515.50/104,162.40
  6. Step 6: Final answer
    x = 77,853.69

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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.