Home / 105,911.32-146,158.66-58,165.68

Finding the Fourth Proportional to 105,911.32, 146,158.66 and 58,165.68

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Solution

The fourth proportional to 105,911.32, 146,158.66 and 58,165.68 is: 80,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,911.32 : 146,158.66 = 58,165.68 : x
  2. Step 2: Convert to fraction form
    105,911.32/146,158.66 = 58,165.68/x
  3. Step 3: Cross multiply
    105,911.32x = 146,158.66 × 58,165.68
  4. Step 4: Simplify right side
    105,911.32x = 8,501,417,846.79
  5. Step 5: Solve for x
    x = 8,501,417,846.79/105,911.32
  6. Step 6: Final answer
    x = 80,269.21

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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.