Home / 118,555.78-163,600.92-64,830.36

Finding the Fourth Proportional to 118,555.78, 163,600.92 and 64,830.36

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Solution

The fourth proportional to 118,555.78, 163,600.92 and 64,830.36 is: 89,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,555.78 : 163,600.92 = 64,830.36 : x
  2. Step 2: Convert to fraction form
    118,555.78/163,600.92 = 64,830.36/x
  3. Step 3: Cross multiply
    118,555.78x = 163,600.92 × 64,830.36
  4. Step 4: Simplify right side
    118,555.78x = 10,606,306,539.93
  5. Step 5: Solve for x
    x = 10,606,306,539.93/118,555.78
  6. Step 6: Final answer
    x = 89,462.58

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1.5x scale

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.