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Finding the Fourth Proportional to 139,637.34, 209,424.42 and 39,795.36

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Solution

The fourth proportional to 139,637.34, 209,424.42 and 39,795.36 is: 59,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,637.34 : 209,424.42 = 39,795.36 : x
  2. Step 2: Convert to fraction form
    139,637.34/209,424.42 = 39,795.36/x
  3. Step 3: Cross multiply
    139,637.34x = 209,424.42 × 39,795.36
  4. Step 4: Simplify right side
    139,637.34x = 8,334,120,186.69
  5. Step 5: Solve for x
    x = 8,334,120,186.69/139,637.34
  6. Step 6: Final answer
    x = 59,684.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.