Home / 118,516.70-163,564.16-64,809.60

Finding the Fourth Proportional to 118,516.70, 163,564.16 and 64,809.60

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Solution

The fourth proportional to 118,516.70, 163,564.16 and 64,809.60 is: 89,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,516.70 : 163,564.16 = 64,809.60 : x
  2. Step 2: Convert to fraction form
    118,516.70/163,564.16 = 64,809.60/x
  3. Step 3: Cross multiply
    118,516.70x = 163,564.16 × 64,809.60
  4. Step 4: Simplify right side
    118,516.70x = 10,600,527,459.89
  5. Step 5: Solve for x
    x = 10,600,527,459.89/118,516.70
  6. Step 6: Final answer
    x = 89,443.33

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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.