Home / 102,812.60-141,881.10-58,100.60

Finding the Fourth Proportional to 102,812.60, 141,881.10 and 58,100.60

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Solution

The fourth proportional to 102,812.60, 141,881.10 and 58,100.60 is: 80,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,812.60 : 141,881.10 = 58,100.60 : x
  2. Step 2: Convert to fraction form
    102,812.60/141,881.10 = 58,100.60/x
  3. Step 3: Cross multiply
    102,812.60x = 141,881.10 × 58,100.60
  4. Step 4: Simplify right side
    102,812.60x = 8,243,377,038.66
  5. Step 5: Solve for x
    x = 8,243,377,038.66/102,812.60
  6. Step 6: Final answer
    x = 80,178.67

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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.