Home / 191,530.80-287,296.20-125,175.60

Finding the Fourth Proportional to 191,530.80, 287,296.20 and 125,175.60

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Solution

The fourth proportional to 191,530.80, 287,296.20 and 125,175.60 is: 187,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,530.80 : 287,296.20 = 125,175.60 : x
  2. Step 2: Convert to fraction form
    191,530.80/287,296.20 = 125,175.60/x
  3. Step 3: Cross multiply
    191,530.80x = 287,296.20 × 125,175.60
  4. Step 4: Simplify right side
    191,530.80x = 35,962,474,212.72
  5. Step 5: Solve for x
    x = 35,962,474,212.72/191,530.80
  6. Step 6: Final answer
    x = 187,763.40

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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.