Home / 136,289.25-188,058.98-81,829.91

Finding the Fourth Proportional to 136,289.25, 188,058.98 and 81,829.91

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Solution

The fourth proportional to 136,289.25, 188,058.98 and 81,829.91 is: 112,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,289.25 : 188,058.98 = 81,829.91 : x
  2. Step 2: Convert to fraction form
    136,289.25/188,058.98 = 81,829.91/x
  3. Step 3: Cross multiply
    136,289.25x = 188,058.98 × 81,829.91
  4. Step 4: Simplify right side
    136,289.25x = 15,388,850,082.81
  5. Step 5: Solve for x
    x = 15,388,850,082.81/136,289.25
  6. Step 6: Final answer
    x = 112,913.16

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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.