Home / 112,372.74-155,079.09-64,626.13

Finding the Fourth Proportional to 112,372.74, 155,079.09 and 64,626.13

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Solution

The fourth proportional to 112,372.74, 155,079.09 and 64,626.13 is: 89,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,372.74 : 155,079.09 = 64,626.13 : x
  2. Step 2: Convert to fraction form
    112,372.74/155,079.09 = 64,626.13/x
  3. Step 3: Cross multiply
    112,372.74x = 155,079.09 × 64,626.13
  4. Step 4: Simplify right side
    112,372.74x = 10,022,160,816.79
  5. Step 5: Solve for x
    x = 10,022,160,816.79/112,372.74
  6. Step 6: Final answer
    x = 89,186.76

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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.