Home / 105,930.57-146,279.08-79,026.36

Finding the Fourth Proportional to 105,930.57, 146,279.08 and 79,026.36

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Solution

The fourth proportional to 105,930.57, 146,279.08 and 79,026.36 is: 109,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,930.57 : 146,279.08 = 79,026.36 : x
  2. Step 2: Convert to fraction form
    105,930.57/146,279.08 = 79,026.36/x
  3. Step 3: Cross multiply
    105,930.57x = 146,279.08 × 79,026.36
  4. Step 4: Simplify right side
    105,930.57x = 11,559,903,236.55
  5. Step 5: Solve for x
    x = 11,559,903,236.55/105,930.57
  6. Step 6: Final answer
    x = 109,127.17

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1.5x scale

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.