Home / 133,055.12-183,616.08-90,687.68

Finding the Fourth Proportional to 133,055.12, 183,616.08 and 90,687.68

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Solution

The fourth proportional to 133,055.12, 183,616.08 and 90,687.68 is: 125,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,055.12 : 183,616.08 = 90,687.68 : x
  2. Step 2: Convert to fraction form
    133,055.12/183,616.08 = 90,687.68/x
  3. Step 3: Cross multiply
    133,055.12x = 183,616.08 × 90,687.68
  4. Step 4: Simplify right side
    133,055.12x = 16,651,716,305.89
  5. Step 5: Solve for x
    x = 16,651,716,305.89/133,055.12
  6. Step 6: Final answer
    x = 125,149.01

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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.