Home / 118,619.92-163,688.63-64,905.98

Finding the Fourth Proportional to 118,619.92, 163,688.63 and 64,905.98

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Solution

The fourth proportional to 118,619.92, 163,688.63 and 64,905.98 is: 89,566.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,619.92 : 163,688.63 = 64,905.98 : x
  2. Step 2: Convert to fraction form
    118,619.92/163,688.63 = 64,905.98/x
  3. Step 3: Cross multiply
    118,619.92x = 163,688.63 × 64,905.98
  4. Step 4: Simplify right side
    118,619.92x = 10,624,371,822.08
  5. Step 5: Solve for x
    x = 10,624,371,822.08/118,619.92
  6. Step 6: Final answer
    x = 89,566.51

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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.