Home / 105,886.77-146,125.83-58,139.70

Finding the Fourth Proportional to 105,886.77, 146,125.83 and 58,139.70

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Solution

The fourth proportional to 105,886.77, 146,125.83 and 58,139.70 is: 80,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,886.77 : 146,125.83 = 58,139.70 : x
  2. Step 2: Convert to fraction form
    105,886.77/146,125.83 = 58,139.70/x
  3. Step 3: Cross multiply
    105,886.77x = 146,125.83 × 58,139.70
  4. Step 4: Simplify right side
    105,886.77x = 8,495,711,918.45
  5. Step 5: Solve for x
    x = 8,495,711,918.45/105,886.77
  6. Step 6: Final answer
    x = 80,233.93

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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.