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Finding the Fourth Proportional to 113,145.63, 169,740.29 and 43,019.49

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Solution

The fourth proportional to 113,145.63, 169,740.29 and 43,019.49 is: 64,537.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,145.63 : 169,740.29 = 43,019.49 : x
  2. Step 2: Convert to fraction form
    113,145.63/169,740.29 = 43,019.49/x
  3. Step 3: Cross multiply
    113,145.63x = 169,740.29 × 43,019.49
  4. Step 4: Simplify right side
    113,145.63x = 7,302,140,708.25
  5. Step 5: Solve for x
    x = 7,302,140,708.25/113,145.63
  6. Step 6: Final answer
    x = 64,537.54

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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.