Home / 113,409.87-156,511.76-63,109.95

Finding the Fourth Proportional to 113,409.87, 156,511.76 and 63,109.95

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Solution

The fourth proportional to 113,409.87, 156,511.76 and 63,109.95 is: 87,095.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,409.87 : 156,511.76 = 63,109.95 : x
  2. Step 2: Convert to fraction form
    113,409.87/156,511.76 = 63,109.95/x
  3. Step 3: Cross multiply
    113,409.87x = 156,511.76 × 63,109.95
  4. Step 4: Simplify right side
    113,409.87x = 9,877,449,032.46
  5. Step 5: Solve for x
    x = 9,877,449,032.46/113,409.87
  6. Step 6: Final answer
    x = 87,095.14

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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.