Home / 101,945.47-152,918.22-31,830.79

Finding the Fourth Proportional to 101,945.47, 152,918.22 and 31,830.79

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Solution

The fourth proportional to 101,945.47, 152,918.22 and 31,830.79 is: 47,746.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,945.47 : 152,918.22 = 31,830.79 : x
  2. Step 2: Convert to fraction form
    101,945.47/152,918.22 = 31,830.79/x
  3. Step 3: Cross multiply
    101,945.47x = 152,918.22 × 31,830.79
  4. Step 4: Simplify right side
    101,945.47x = 4,867,507,747.99
  5. Step 5: Solve for x
    x = 4,867,507,747.99/101,945.47
  6. Step 6: Final answer
    x = 47,746.19

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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.