Home / 105,838.20-158,770.26-46,688.76

Finding the Fourth Proportional to 105,838.20, 158,770.26 and 46,688.76

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Solution

The fourth proportional to 105,838.20, 158,770.26 and 46,688.76 is: 70,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,838.20 : 158,770.26 = 46,688.76 : x
  2. Step 2: Convert to fraction form
    105,838.20/158,770.26 = 46,688.76/x
  3. Step 3: Cross multiply
    105,838.20x = 158,770.26 × 46,688.76
  4. Step 4: Simplify right side
    105,838.20x = 7,412,786,564.28
  5. Step 5: Solve for x
    x = 7,412,786,564.28/105,838.20
  6. Step 6: Final answer
    x = 70,038.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.