Home / 134,146.92-185,131.80-76,804.32

Finding the Fourth Proportional to 134,146.92, 185,131.80 and 76,804.32

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Solution

The fourth proportional to 134,146.92, 185,131.80 and 76,804.32 is: 105,995.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,146.92 : 185,131.80 = 76,804.32 : x
  2. Step 2: Convert to fraction form
    134,146.92/185,131.80 = 76,804.32/x
  3. Step 3: Cross multiply
    134,146.92x = 185,131.80 × 76,804.32
  4. Step 4: Simplify right side
    134,146.92x = 14,218,922,009.38
  5. Step 5: Solve for x
    x = 14,218,922,009.38/134,146.92
  6. Step 6: Final answer
    x = 105,995.14

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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.