Home / 102,645.19-153,908.97-31,549.33

Finding the Fourth Proportional to 102,645.19, 153,908.97 and 31,549.33

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Solution

The fourth proportional to 102,645.19, 153,908.97 and 31,549.33 is: 47,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,645.19 : 153,908.97 = 31,549.33 : x
  2. Step 2: Convert to fraction form
    102,645.19/153,908.97 = 31,549.33/x
  3. Step 3: Cross multiply
    102,645.19x = 153,908.97 × 31,549.33
  4. Step 4: Simplify right side
    102,645.19x = 4,855,724,884.49
  5. Step 5: Solve for x
    x = 4,855,724,884.49/102,645.19
  6. Step 6: Final answer
    x = 47,305.92

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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.