Home / 136,622.47-188,538.63-76,193.17

Finding the Fourth Proportional to 136,622.47, 188,538.63 and 76,193.17

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Solution

The fourth proportional to 136,622.47, 188,538.63 and 76,193.17 is: 105,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,622.47 : 188,538.63 = 76,193.17 : x
  2. Step 2: Convert to fraction form
    136,622.47/188,538.63 = 76,193.17/x
  3. Step 3: Cross multiply
    136,622.47x = 188,538.63 × 76,193.17
  4. Step 4: Simplify right side
    136,622.47x = 14,365,355,887.16
  5. Step 5: Solve for x
    x = 14,365,355,887.16/136,622.47
  6. Step 6: Final answer
    x = 105,146.36

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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.