Home / 134,150.78-185,087.70-80,416.19

Finding the Fourth Proportional to 134,150.78, 185,087.70 and 80,416.19

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Solution

The fourth proportional to 134,150.78, 185,087.70 and 80,416.19 is: 110,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,150.78 : 185,087.70 = 80,416.19 : x
  2. Step 2: Convert to fraction form
    134,150.78/185,087.70 = 80,416.19/x
  3. Step 3: Cross multiply
    134,150.78x = 185,087.70 × 80,416.19
  4. Step 4: Simplify right side
    134,150.78x = 14,884,047,649.86
  5. Step 5: Solve for x
    x = 14,884,047,649.86/134,150.78
  6. Step 6: Final answer
    x = 110,950.14

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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.