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Finding the Fourth Proportional to 115,341.40, 173,012.10 and 31,101.40

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Solution

The fourth proportional to 115,341.40, 173,012.10 and 31,101.40 is: 46,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,341.40 : 173,012.10 = 31,101.40 : x
  2. Step 2: Convert to fraction form
    115,341.40/173,012.10 = 31,101.40/x
  3. Step 3: Cross multiply
    115,341.40x = 173,012.10 × 31,101.40
  4. Step 4: Simplify right side
    115,341.40x = 5,380,918,526.94
  5. Step 5: Solve for x
    x = 5,380,918,526.94/115,341.40
  6. Step 6: Final answer
    x = 46,652.10

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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.