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Finding the Fourth Proportional to 170,715.58, 235,342.64 and 134,354

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Solution

The fourth proportional to 170,715.58, 235,342.64 and 134,354 is: 185,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,715.58 : 235,342.64 = 134,354 : x
  2. Step 2: Convert to fraction form
    170,715.58/235,342.64 = 134,354/x
  3. Step 3: Cross multiply
    170,715.58x = 235,342.64 × 134,354
  4. Step 4: Simplify right side
    170,715.58x = 31,619,225,054.56
  5. Step 5: Solve for x
    x = 31,619,225,054.56/170,715.58
  6. Step 6: Final answer
    x = 185,215.81

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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.