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Finding the Fourth Proportional to 113,143.88, 169,737.66 and 43,017.72

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Solution

The fourth proportional to 113,143.88, 169,737.66 and 43,017.72 is: 64,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,143.88 : 169,737.66 = 43,017.72 : x
  2. Step 2: Convert to fraction form
    113,143.88/169,737.66 = 43,017.72/x
  3. Step 3: Cross multiply
    113,143.88x = 169,737.66 × 43,017.72
  4. Step 4: Simplify right side
    113,143.88x = 7,301,727,131.34
  5. Step 5: Solve for x
    x = 7,301,727,131.34/113,143.88
  6. Step 6: Final answer
    x = 64,534.89

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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.