Home / 94,785.80-130,977.61-90,173.05

Finding the Fourth Proportional to 94,785.80, 130,977.61 and 90,173.05

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Solution

The fourth proportional to 94,785.80, 130,977.61 and 90,173.05 is: 124,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,785.80 : 130,977.61 = 90,173.05 : x
  2. Step 2: Convert to fraction form
    94,785.80/130,977.61 = 90,173.05/x
  3. Step 3: Cross multiply
    94,785.80x = 130,977.61 × 90,173.05
  4. Step 4: Simplify right side
    94,785.80x = 11,810,650,022.53
  5. Step 5: Solve for x
    x = 11,810,650,022.53/94,785.80
  6. Step 6: Final answer
    x = 124,603.59

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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.