Home / 193,405.28-290,074.24-53,130.56

Finding the Fourth Proportional to 193,405.28, 290,074.24 and 53,130.56

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Solution

The fourth proportional to 193,405.28, 290,074.24 and 53,130.56 is: 79,686.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,405.28 : 290,074.24 = 53,130.56 : x
  2. Step 2: Convert to fraction form
    193,405.28/290,074.24 = 53,130.56/x
  3. Step 3: Cross multiply
    193,405.28x = 290,074.24 × 53,130.56
  4. Step 4: Simplify right side
    193,405.28x = 15,411,806,812.77
  5. Step 5: Solve for x
    x = 15,411,806,812.77/193,405.28
  6. Step 6: Final answer
    x = 79,686.59

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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.