Home / 140,403.14-210,478.27-51,637.66

Finding the Fourth Proportional to 140,403.14, 210,478.27 and 51,637.66

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Solution

The fourth proportional to 140,403.14, 210,478.27 and 51,637.66 is: 77,409.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,403.14 : 210,478.27 = 51,637.66 : x
  2. Step 2: Convert to fraction form
    140,403.14/210,478.27 = 51,637.66/x
  3. Step 3: Cross multiply
    140,403.14x = 210,478.27 × 51,637.66
  4. Step 4: Simplify right side
    140,403.14x = 10,868,605,343.65
  5. Step 5: Solve for x
    x = 10,868,605,343.65/140,403.14
  6. Step 6: Final answer
    x = 77,409.99

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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.