Home / 118,688.20-163,793.59-64,973.22

Finding the Fourth Proportional to 118,688.20, 163,793.59 and 64,973.22

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Solution

The fourth proportional to 118,688.20, 163,793.59 and 64,973.22 is: 89,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,688.20 : 163,793.59 = 64,973.22 : x
  2. Step 2: Convert to fraction form
    118,688.20/163,793.59 = 64,973.22/x
  3. Step 3: Cross multiply
    118,688.20x = 163,793.59 × 64,973.22
  4. Step 4: Simplify right side
    118,688.20x = 10,642,196,795.23
  5. Step 5: Solve for x
    x = 10,642,196,795.23/118,688.20
  6. Step 6: Final answer
    x = 89,665.16

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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.