Home / 102,880.06-154,334.43-31,808.50

Finding the Fourth Proportional to 102,880.06, 154,334.43 and 31,808.50

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Solution

The fourth proportional to 102,880.06, 154,334.43 and 31,808.50 is: 47,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,880.06 : 154,334.43 = 31,808.50 : x
  2. Step 2: Convert to fraction form
    102,880.06/154,334.43 = 31,808.50/x
  3. Step 3: Cross multiply
    102,880.06x = 154,334.43 × 31,808.50
  4. Step 4: Simplify right side
    102,880.06x = 4,909,146,330.82
  5. Step 5: Solve for x
    x = 4,909,146,330.82/102,880.06
  6. Step 6: Final answer
    x = 47,717.18

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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.