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Finding the Fourth Proportional to 188,574.80, 260,234.16 and 103,697.36

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Solution

The fourth proportional to 188,574.80, 260,234.16 and 103,697.36 is: 143,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,574.80 : 260,234.16 = 103,697.36 : x
  2. Step 2: Convert to fraction form
    188,574.80/260,234.16 = 103,697.36/x
  3. Step 3: Cross multiply
    188,574.80x = 260,234.16 × 103,697.36
  4. Step 4: Simplify right side
    188,574.80x = 26,985,595,373.82
  5. Step 5: Solve for x
    x = 26,985,595,373.82/188,574.80
  6. Step 6: Final answer
    x = 143,102.87

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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.