Home / 118,742.11-163,862.88-64,293.35

Finding the Fourth Proportional to 118,742.11, 163,862.88 and 64,293.35

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Solution

The fourth proportional to 118,742.11, 163,862.88 and 64,293.35 is: 88,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,742.11 : 163,862.88 = 64,293.35 : x
  2. Step 2: Convert to fraction form
    118,742.11/163,862.88 = 64,293.35/x
  3. Step 3: Cross multiply
    118,742.11x = 163,862.88 × 64,293.35
  4. Step 4: Simplify right side
    118,742.11x = 10,535,293,495.85
  5. Step 5: Solve for x
    x = 10,535,293,495.85/118,742.11
  6. Step 6: Final answer
    x = 88,724.16

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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.