Home / 133,090.08-183,661.89-75,728.15

Finding the Fourth Proportional to 133,090.08, 183,661.89 and 75,728.15

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Solution

The fourth proportional to 133,090.08, 183,661.89 and 75,728.15 is: 104,503.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,090.08 : 183,661.89 = 75,728.15 : x
  2. Step 2: Convert to fraction form
    133,090.08/183,661.89 = 75,728.15/x
  3. Step 3: Cross multiply
    133,090.08x = 183,661.89 × 75,728.15
  4. Step 4: Simplify right side
    133,090.08x = 13,908,375,155.20
  5. Step 5: Solve for x
    x = 13,908,375,155.20/133,090.08
  6. Step 6: Final answer
    x = 104,503.47

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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.