Home / 118,201.08-163,177.56-91,283.16

Finding the Fourth Proportional to 118,201.08, 163,177.56 and 91,283.16

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Solution

The fourth proportional to 118,201.08, 163,177.56 and 91,283.16 is: 126,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,201.08 : 163,177.56 = 91,283.16 : x
  2. Step 2: Convert to fraction form
    118,201.08/163,177.56 = 91,283.16/x
  3. Step 3: Cross multiply
    118,201.08x = 163,177.56 × 91,283.16
  4. Step 4: Simplify right side
    118,201.08x = 14,895,363,317.89
  5. Step 5: Solve for x
    x = 14,895,363,317.89/118,201.08
  6. Step 6: Final answer
    x = 126,017.15

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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.