Home / 131,051.40-196,577.10-128,864.40

Finding the Fourth Proportional to 131,051.40, 196,577.10 and 128,864.40

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Solution

The fourth proportional to 131,051.40, 196,577.10 and 128,864.40 is: 193,296.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,051.40 : 196,577.10 = 128,864.40 : x
  2. Step 2: Convert to fraction form
    131,051.40/196,577.10 = 128,864.40/x
  3. Step 3: Cross multiply
    131,051.40x = 196,577.10 × 128,864.40
  4. Step 4: Simplify right side
    131,051.40x = 25,331,790,045.24
  5. Step 5: Solve for x
    x = 25,331,790,045.24/131,051.40
  6. Step 6: Final answer
    x = 193,296.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.