Home / 170,396.40-235,148-98,818.88

Finding the Fourth Proportional to 170,396.40, 235,148 and 98,818.88

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Solution

The fourth proportional to 170,396.40, 235,148 and 98,818.88 is: 136,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,396.40 : 235,148 = 98,818.88 : x
  2. Step 2: Convert to fraction form
    170,396.40/235,148 = 98,818.88/x
  3. Step 3: Cross multiply
    170,396.40x = 235,148 × 98,818.88
  4. Step 4: Simplify right side
    170,396.40x = 23,237,061,994.24
  5. Step 5: Solve for x
    x = 23,237,061,994.24/170,396.40
  6. Step 6: Final answer
    x = 136,370.62

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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.