Home / 105,909.49-146,156.06-58,163.20

Finding the Fourth Proportional to 105,909.49, 146,156.06 and 58,163.20

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Solution

The fourth proportional to 105,909.49, 146,156.06 and 58,163.20 is: 80,265.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,909.49 : 146,156.06 = 58,163.20 : x
  2. Step 2: Convert to fraction form
    105,909.49/146,156.06 = 58,163.20/x
  3. Step 3: Cross multiply
    105,909.49x = 146,156.06 × 58,163.20
  4. Step 4: Simplify right side
    105,909.49x = 8,500,903,929.01
  5. Step 5: Solve for x
    x = 8,500,903,929.01/105,909.49
  6. Step 6: Final answer
    x = 80,265.74

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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.