Home / 118,357.81-163,331.26-64,643.04

Finding the Fourth Proportional to 118,357.81, 163,331.26 and 64,643.04

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Solution

The fourth proportional to 118,357.81, 163,331.26 and 64,643.04 is: 89,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,357.81 : 163,331.26 = 64,643.04 : x
  2. Step 2: Convert to fraction form
    118,357.81/163,331.26 = 64,643.04/x
  3. Step 3: Cross multiply
    118,357.81x = 163,331.26 × 64,643.04
  4. Step 4: Simplify right side
    118,357.81x = 10,558,229,173.43
  5. Step 5: Solve for x
    x = 10,558,229,173.43/118,357.81
  6. Step 6: Final answer
    x = 89,206.02

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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.