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Finding the Fourth Proportional to 112,160.98, 154,806.10 and 64,440.64

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Solution

The fourth proportional to 112,160.98, 154,806.10 and 64,440.64 is: 88,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,160.98 : 154,806.10 = 64,440.64 : x
  2. Step 2: Convert to fraction form
    112,160.98/154,806.10 = 64,440.64/x
  3. Step 3: Cross multiply
    112,160.98x = 154,806.10 × 64,440.64
  4. Step 4: Simplify right side
    112,160.98x = 9,975,803,933.99
  5. Step 5: Solve for x
    x = 9,975,803,933.99/112,160.98
  6. Step 6: Final answer
    x = 88,941.84

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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.