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Finding the Fourth Proportional to 188,500.40, 260,131.41 and 103,622.93

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Solution

The fourth proportional to 188,500.40, 260,131.41 and 103,622.93 is: 143,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,500.40 : 260,131.41 = 103,622.93 : x
  2. Step 2: Convert to fraction form
    188,500.40/260,131.41 = 103,622.93/x
  3. Step 3: Cross multiply
    188,500.40x = 260,131.41 × 103,622.93
  4. Step 4: Simplify right side
    188,500.40x = 26,955,578,889.23
  5. Step 5: Solve for x
    x = 26,955,578,889.23/188,500.40
  6. Step 6: Final answer
    x = 143,000.12

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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.