Home / 134,835.22-186,071.34-74,406.40

Finding the Fourth Proportional to 134,835.22, 186,071.34 and 74,406.40

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Solution

The fourth proportional to 134,835.22, 186,071.34 and 74,406.40 is: 102,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,835.22 : 186,071.34 = 74,406.40 : x
  2. Step 2: Convert to fraction form
    134,835.22/186,071.34 = 74,406.40/x
  3. Step 3: Cross multiply
    134,835.22x = 186,071.34 × 74,406.40
  4. Step 4: Simplify right side
    134,835.22x = 13,844,898,552.58
  5. Step 5: Solve for x
    x = 13,844,898,552.58/134,835.22
  6. Step 6: Final answer
    x = 102,680.13

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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.