Home / 106,139.90-146,471.46-58,390.40

Finding the Fourth Proportional to 106,139.90, 146,471.46 and 58,390.40

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Solution

The fourth proportional to 106,139.90, 146,471.46 and 58,390.40 is: 80,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,139.90 : 146,471.46 = 58,390.40 : x
  2. Step 2: Convert to fraction form
    106,139.90/146,471.46 = 58,390.40/x
  3. Step 3: Cross multiply
    106,139.90x = 146,471.46 × 58,390.40
  4. Step 4: Simplify right side
    106,139.90x = 8,552,527,137.98
  5. Step 5: Solve for x
    x = 8,552,527,137.98/106,139.90
  6. Step 6: Final answer
    x = 80,577.87

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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.