Home / 90,268.16-124,454.40-70,090.88

Finding the Fourth Proportional to 90,268.16, 124,454.40 and 70,090.88

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Solution

The fourth proportional to 90,268.16, 124,454.40 and 70,090.88 is: 96,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,268.16 : 124,454.40 = 70,090.88 : x
  2. Step 2: Convert to fraction form
    90,268.16/124,454.40 = 70,090.88/x
  3. Step 3: Cross multiply
    90,268.16x = 124,454.40 × 70,090.88
  4. Step 4: Simplify right side
    90,268.16x = 8,723,118,415.87
  5. Step 5: Solve for x
    x = 8,723,118,415.87/90,268.16
  6. Step 6: Final answer
    x = 96,635.61

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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.