Home / 118,230.96-163,158.08-64,515.81

Finding the Fourth Proportional to 118,230.96, 163,158.08 and 64,515.81

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Solution

The fourth proportional to 118,230.96, 163,158.08 and 64,515.81 is: 89,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.96 : 163,158.08 = 64,515.81 : x
  2. Step 2: Convert to fraction form
    118,230.96/163,158.08 = 64,515.81/x
  3. Step 3: Cross multiply
    118,230.96x = 163,158.08 × 64,515.81
  4. Step 4: Simplify right side
    118,230.96x = 10,526,275,366.67
  5. Step 5: Solve for x
    x = 10,526,275,366.67/118,230.96
  6. Step 6: Final answer
    x = 89,031.46

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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.