Home / 105,861.67-158,728.07-45,000.23

Finding the Fourth Proportional to 105,861.67, 158,728.07 and 45,000.23

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Solution

The fourth proportional to 105,861.67, 158,728.07 and 45,000.23 is: 67,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,861.67 : 158,728.07 = 45,000.23 : x
  2. Step 2: Convert to fraction form
    105,861.67/158,728.07 = 45,000.23/x
  3. Step 3: Cross multiply
    105,861.67x = 158,728.07 × 45,000.23
  4. Step 4: Simplify right side
    105,861.67x = 7,142,798,976.32
  5. Step 5: Solve for x
    x = 7,142,798,976.32/105,861.67
  6. Step 6: Final answer
    x = 67,472.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.