Home / 112,688.84-169,068.63-67,761.92

Finding the Fourth Proportional to 112,688.84, 169,068.63 and 67,761.92

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Solution

The fourth proportional to 112,688.84, 169,068.63 and 67,761.92 is: 101,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,688.84 : 169,068.63 = 67,761.92 : x
  2. Step 2: Convert to fraction form
    112,688.84/169,068.63 = 67,761.92/x
  3. Step 3: Cross multiply
    112,688.84x = 169,068.63 × 67,761.92
  4. Step 4: Simplify right side
    112,688.84x = 11,456,414,980.57
  5. Step 5: Solve for x
    x = 11,456,414,980.57/112,688.84
  6. Step 6: Final answer
    x = 101,664.15

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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.