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Finding the Fourth Proportional to 188,762.72, 260,433.90 and 107,077.50

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Solution

The fourth proportional to 188,762.72, 260,433.90 and 107,077.50 is: 147,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,762.72 : 260,433.90 = 107,077.50 : x
  2. Step 2: Convert to fraction form
    188,762.72/260,433.90 = 107,077.50/x
  3. Step 3: Cross multiply
    188,762.72x = 260,433.90 × 107,077.50
  4. Step 4: Simplify right side
    188,762.72x = 27,886,610,927.25
  5. Step 5: Solve for x
    x = 27,886,610,927.25/188,762.72
  6. Step 6: Final answer
    x = 147,733.68

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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.