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Finding the Fourth Proportional to 105,925.70, 159,465.69 and 91,462.34

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Solution

The fourth proportional to 105,925.70, 159,465.69 and 91,462.34 is: 137,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,925.70 : 159,465.69 = 91,462.34 : x
  2. Step 2: Convert to fraction form
    105,925.70/159,465.69 = 91,462.34/x
  3. Step 3: Cross multiply
    105,925.70x = 159,465.69 × 91,462.34
  4. Step 4: Simplify right side
    105,925.70x = 14,585,105,157.11
  5. Step 5: Solve for x
    x = 14,585,105,157.11/105,925.70
  6. Step 6: Final answer
    x = 137,691.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.