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Finding the Fourth Proportional to 188,545.56, 260,155.56 and 105,762.21

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Solution

The fourth proportional to 188,545.56, 260,155.56 and 105,762.21 is: 145,930.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,545.56 : 260,155.56 = 105,762.21 : x
  2. Step 2: Convert to fraction form
    188,545.56/260,155.56 = 105,762.21/x
  3. Step 3: Cross multiply
    188,545.56x = 260,155.56 × 105,762.21
  4. Step 4: Simplify right side
    188,545.56x = 27,514,626,969.39
  5. Step 5: Solve for x
    x = 27,514,626,969.39/188,545.56
  6. Step 6: Final answer
    x = 145,930.92

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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.