Home / 118,582.85-163,645.72-64,866.71

Finding the Fourth Proportional to 118,582.85, 163,645.72 and 64,866.71

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Solution

The fourth proportional to 118,582.85, 163,645.72 and 64,866.71 is: 89,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,582.85 : 163,645.72 = 64,866.71 : x
  2. Step 2: Convert to fraction form
    118,582.85/163,645.72 = 64,866.71/x
  3. Step 3: Cross multiply
    118,582.85x = 163,645.72 × 64,866.71
  4. Step 4: Simplify right side
    118,582.85x = 10,615,159,708.93
  5. Step 5: Solve for x
    x = 10,615,159,708.93/118,582.85
  6. Step 6: Final answer
    x = 89,516.82

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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.