Home / 136,301.50-188,107.59-76,697.02

Finding the Fourth Proportional to 136,301.50, 188,107.59 and 76,697.02

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Solution

The fourth proportional to 136,301.50, 188,107.59 and 76,697.02 is: 105,848.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,301.50 : 188,107.59 = 76,697.02 : x
  2. Step 2: Convert to fraction form
    136,301.50/188,107.59 = 76,697.02/x
  3. Step 3: Cross multiply
    136,301.50x = 188,107.59 × 76,697.02
  4. Step 4: Simplify right side
    136,301.50x = 14,427,291,592.38
  5. Step 5: Solve for x
    x = 14,427,291,592.38/136,301.50
  6. Step 6: Final answer
    x = 105,848.37

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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.