Home / 106,431.81-146,876.88-58,686.84

Finding the Fourth Proportional to 106,431.81, 146,876.88 and 58,686.84

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Solution

The fourth proportional to 106,431.81, 146,876.88 and 58,686.84 is: 80,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,431.81 : 146,876.88 = 58,686.84 : x
  2. Step 2: Convert to fraction form
    106,431.81/146,876.88 = 58,686.84/x
  3. Step 3: Cross multiply
    106,431.81x = 146,876.88 × 58,686.84
  4. Step 4: Simplify right side
    106,431.81x = 8,619,739,956.26
  5. Step 5: Solve for x
    x = 8,619,739,956.26/106,431.81
  6. Step 6: Final answer
    x = 80,988.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.