Home / 133,054.12-183,614.70-90,686.68

Finding the Fourth Proportional to 133,054.12, 183,614.70 and 90,686.68

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Solution

The fourth proportional to 133,054.12, 183,614.70 and 90,686.68 is: 125,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,054.12 : 183,614.70 = 90,686.68 : x
  2. Step 2: Convert to fraction form
    133,054.12/183,614.70 = 90,686.68/x
  3. Step 3: Cross multiply
    133,054.12x = 183,614.70 × 90,686.68
  4. Step 4: Simplify right side
    133,054.12x = 16,651,407,542.20
  5. Step 5: Solve for x
    x = 16,651,407,542.20/133,054.12
  6. Step 6: Final answer
    x = 125,147.63

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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.