Home / 105,462.07-157,941.51-67,391.68

Finding the Fourth Proportional to 105,462.07, 157,941.51 and 67,391.68

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Solution

The fourth proportional to 105,462.07, 157,941.51 and 67,391.68 is: 100,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,462.07 : 157,941.51 = 67,391.68 : x
  2. Step 2: Convert to fraction form
    105,462.07/157,941.51 = 67,391.68/x
  3. Step 3: Cross multiply
    105,462.07x = 157,941.51 × 67,391.68
  4. Step 4: Simplify right side
    105,462.07x = 10,643,943,700.64
  5. Step 5: Solve for x
    x = 10,643,943,700.64/105,462.07
  6. Step 6: Final answer
    x = 100,926.75

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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.