Home / 105,047.45-157,439.77-52,471.61

Finding the Fourth Proportional to 105,047.45, 157,439.77 and 52,471.61

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Solution

The fourth proportional to 105,047.45, 157,439.77 and 52,471.61 is: 78,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,047.45 : 157,439.77 = 52,471.61 : x
  2. Step 2: Convert to fraction form
    105,047.45/157,439.77 = 52,471.61/x
  3. Step 3: Cross multiply
    105,047.45x = 157,439.77 × 52,471.61
  4. Step 4: Simplify right side
    105,047.45x = 8,261,118,209.93
  5. Step 5: Solve for x
    x = 8,261,118,209.93/105,047.45
  6. Step 6: Final answer
    x = 78,641.78

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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.