Home / 118,391.77-163,378.59-64,675.39

Finding the Fourth Proportional to 118,391.77, 163,378.59 and 64,675.39

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Solution

The fourth proportional to 118,391.77, 163,378.59 and 64,675.39 is: 89,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,391.77 : 163,378.59 = 64,675.39 : x
  2. Step 2: Convert to fraction form
    118,391.77/163,378.59 = 64,675.39/x
  3. Step 3: Cross multiply
    118,391.77x = 163,378.59 × 64,675.39
  4. Step 4: Simplify right side
    118,391.77x = 10,566,574,025.90
  5. Step 5: Solve for x
    x = 10,566,574,025.90/118,391.77
  6. Step 6: Final answer
    x = 89,250.92

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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.