Home / 455,900.16-683,788.68-118,964.46

Finding the Fourth Proportional to 455,900.16, 683,788.68 and 118,964.46

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Solution

The fourth proportional to 455,900.16, 683,788.68 and 118,964.46 is: 178,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,900.16 : 683,788.68 = 118,964.46 : x
  2. Step 2: Convert to fraction form
    455,900.16/683,788.68 = 118,964.46/x
  3. Step 3: Cross multiply
    455,900.16x = 683,788.68 × 118,964.46
  4. Step 4: Simplify right side
    455,900.16x = 81,346,551,070.31
  5. Step 5: Solve for x
    x = 81,346,551,070.31/455,900.16
  6. Step 6: Final answer
    x = 178,430.63

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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.