Home / 188,543.78-260,191.38-103,666.30

Finding the Fourth Proportional to 188,543.78, 260,191.38 and 103,666.30

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Solution

The fourth proportional to 188,543.78, 260,191.38 and 103,666.30 is: 143,060.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,543.78 : 260,191.38 = 103,666.30 : x
  2. Step 2: Convert to fraction form
    188,543.78/260,191.38 = 103,666.30/x
  3. Step 3: Cross multiply
    188,543.78x = 260,191.38 × 103,666.30
  4. Step 4: Simplify right side
    188,543.78x = 26,973,077,656.49
  5. Step 5: Solve for x
    x = 26,973,077,656.49/188,543.78
  6. Step 6: Final answer
    x = 143,060.02

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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.