Home / 103,134.60-142,335.83-57,812.67

Finding the Fourth Proportional to 103,134.60, 142,335.83 and 57,812.67

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Solution

The fourth proportional to 103,134.60, 142,335.83 and 57,812.67 is: 79,787.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,134.60 : 142,335.83 = 57,812.67 : x
  2. Step 2: Convert to fraction form
    103,134.60/142,335.83 = 57,812.67/x
  3. Step 3: Cross multiply
    103,134.60x = 142,335.83 × 57,812.67
  4. Step 4: Simplify right side
    103,134.60x = 8,228,814,513.50
  5. Step 5: Solve for x
    x = 8,228,814,513.50/103,134.60
  6. Step 6: Final answer
    x = 79,787.14

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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.