Home / 106,821.96-147,411.64-58,421.92

Finding the Fourth Proportional to 106,821.96, 147,411.64 and 58,421.92

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Solution

The fourth proportional to 106,821.96, 147,411.64 and 58,421.92 is: 80,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,821.96 : 147,411.64 = 58,421.92 : x
  2. Step 2: Convert to fraction form
    106,821.96/147,411.64 = 58,421.92/x
  3. Step 3: Cross multiply
    106,821.96x = 147,411.64 × 58,421.92
  4. Step 4: Simplify right side
    106,821.96x = 8,612,071,039.15
  5. Step 5: Solve for x
    x = 8,612,071,039.15/106,821.96
  6. Step 6: Final answer
    x = 80,620.79

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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.