Home / 257,974.17-387,113.52-98,184.66

Finding the Fourth Proportional to 257,974.17, 387,113.52 and 98,184.66

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Solution

The fourth proportional to 257,974.17, 387,113.52 and 98,184.66 is: 147,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,974.17 : 387,113.52 = 98,184.66 : x
  2. Step 2: Convert to fraction form
    257,974.17/387,113.52 = 98,184.66/x
  3. Step 3: Cross multiply
    257,974.17x = 387,113.52 × 98,184.66
  4. Step 4: Simplify right side
    257,974.17x = 38,008,609,342.60
  5. Step 5: Solve for x
    x = 38,008,609,342.60/257,974.17
  6. Step 6: Final answer
    x = 147,334.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.