Home / 104,102.40-143,661.15-56,355.74

Finding the Fourth Proportional to 104,102.40, 143,661.15 and 56,355.74

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Solution

The fourth proportional to 104,102.40, 143,661.15 and 56,355.74 is: 77,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,102.40 : 143,661.15 = 56,355.74 : x
  2. Step 2: Convert to fraction form
    104,102.40/143,661.15 = 56,355.74/x
  3. Step 3: Cross multiply
    104,102.40x = 143,661.15 × 56,355.74
  4. Step 4: Simplify right side
    104,102.40x = 8,096,130,417.50
  5. Step 5: Solve for x
    x = 8,096,130,417.50/104,102.40
  6. Step 6: Final answer
    x = 77,770.83

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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.