Home / 135,440.34-186,848.64-81,695.52

Finding the Fourth Proportional to 135,440.34, 186,848.64 and 81,695.52

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Solution

The fourth proportional to 135,440.34, 186,848.64 and 81,695.52 is: 112,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,440.34 : 186,848.64 = 81,695.52 : x
  2. Step 2: Convert to fraction form
    135,440.34/186,848.64 = 81,695.52/x
  3. Step 3: Cross multiply
    135,440.34x = 186,848.64 × 81,695.52
  4. Step 4: Simplify right side
    135,440.34x = 15,264,696,806.09
  5. Step 5: Solve for x
    x = 15,264,696,806.09/135,440.34
  6. Step 6: Final answer
    x = 112,704.21

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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.