Home / 134,141.18-185,127.84-76,785.23

Finding the Fourth Proportional to 134,141.18, 185,127.84 and 76,785.23

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Solution

The fourth proportional to 134,141.18, 185,127.84 and 76,785.23 is: 105,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,141.18 : 185,127.84 = 76,785.23 : x
  2. Step 2: Convert to fraction form
    134,141.18/185,127.84 = 76,785.23/x
  3. Step 3: Cross multiply
    134,141.18x = 185,127.84 × 76,785.23
  4. Step 4: Simplify right side
    134,141.18x = 14,215,083,563.59
  5. Step 5: Solve for x
    x = 14,215,083,563.59/134,141.18
  6. Step 6: Final answer
    x = 105,971.06

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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.