Home / 118,352.87-163,328.25-64,639.45

Finding the Fourth Proportional to 118,352.87, 163,328.25 and 64,639.45

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Solution

The fourth proportional to 118,352.87, 163,328.25 and 64,639.45 is: 89,203.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,352.87 : 163,328.25 = 64,639.45 : x
  2. Step 2: Convert to fraction form
    118,352.87/163,328.25 = 64,639.45/x
  3. Step 3: Cross multiply
    118,352.87x = 163,328.25 × 64,639.45
  4. Step 4: Simplify right side
    118,352.87x = 10,557,448,249.46
  5. Step 5: Solve for x
    x = 10,557,448,249.46/118,352.87
  6. Step 6: Final answer
    x = 89,203.15

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1.5x scale

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.