Home / 118,357.94-163,331.43-64,643.17

Finding the Fourth Proportional to 118,357.94, 163,331.43 and 64,643.17

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Solution

The fourth proportional to 118,357.94, 163,331.43 and 64,643.17 is: 89,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,357.94 : 163,331.43 = 64,643.17 : x
  2. Step 2: Convert to fraction form
    118,357.94/163,331.43 = 64,643.17/x
  3. Step 3: Cross multiply
    118,357.94x = 163,331.43 × 64,643.17
  4. Step 4: Simplify right side
    118,357.94x = 10,558,260,987.50
  5. Step 5: Solve for x
    x = 10,558,260,987.50/118,357.94
  6. Step 6: Final answer
    x = 89,206.19

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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.