Home / 160,079.10-220,939.74-105,535.56

Finding the Fourth Proportional to 160,079.10, 220,939.74 and 105,535.56

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Solution

The fourth proportional to 160,079.10, 220,939.74 and 105,535.56 is: 145,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,079.10 : 220,939.74 = 105,535.56 : x
  2. Step 2: Convert to fraction form
    160,079.10/220,939.74 = 105,535.56/x
  3. Step 3: Cross multiply
    160,079.10x = 220,939.74 × 105,535.56
  4. Step 4: Simplify right side
    160,079.10x = 23,316,999,187.15
  5. Step 5: Solve for x
    x = 23,316,999,187.15/160,079.10
  6. Step 6: Final answer
    x = 145,659.23

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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.