Home / 107,812.06-147,703.07-103,771.74

Finding the Fourth Proportional to 107,812.06, 147,703.07 and 103,771.74

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Solution

The fourth proportional to 107,812.06, 147,703.07 and 103,771.74 is: 142,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,812.06 : 147,703.07 = 103,771.74 : x
  2. Step 2: Convert to fraction form
    107,812.06/147,703.07 = 103,771.74/x
  3. Step 3: Cross multiply
    107,812.06x = 147,703.07 × 103,771.74
  4. Step 4: Simplify right side
    107,812.06x = 15,327,404,058.38
  5. Step 5: Solve for x
    x = 15,327,404,058.38/107,812.06
  6. Step 6: Final answer
    x = 142,167.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.