Home / 90,555.24-135,064.23-88,980.60

Finding the Fourth Proportional to 90,555.24, 135,064.23 and 88,980.60

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Solution

The fourth proportional to 90,555.24, 135,064.23 and 88,980.60 is: 132,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,555.24 : 135,064.23 = 88,980.60 : x
  2. Step 2: Convert to fraction form
    90,555.24/135,064.23 = 88,980.60/x
  3. Step 3: Cross multiply
    90,555.24x = 135,064.23 × 88,980.60
  4. Step 4: Simplify right side
    90,555.24x = 12,018,096,223.94
  5. Step 5: Solve for x
    x = 12,018,096,223.94/90,555.24
  6. Step 6: Final answer
    x = 132,715.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.