Home / 128,068.57-176,699.23-82,748.53

Finding the Fourth Proportional to 128,068.57, 176,699.23 and 82,748.53

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Solution

The fourth proportional to 128,068.57, 176,699.23 and 82,748.53 is: 114,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,068.57 : 176,699.23 = 82,748.53 : x
  2. Step 2: Convert to fraction form
    128,068.57/176,699.23 = 82,748.53/x
  3. Step 3: Cross multiply
    128,068.57x = 176,699.23 × 82,748.53
  4. Step 4: Simplify right side
    128,068.57x = 14,621,601,534.63
  5. Step 5: Solve for x
    x = 14,621,601,534.63/128,068.57
  6. Step 6: Final answer
    x = 114,170.10

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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.