Home / 307,712.16-461,252.88-118,121.40

Finding the Fourth Proportional to 307,712.16, 461,252.88 and 118,121.40

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Solution

The fourth proportional to 307,712.16, 461,252.88 and 118,121.40 is: 177,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,712.16 : 461,252.88 = 118,121.40 : x
  2. Step 2: Convert to fraction form
    307,712.16/461,252.88 = 118,121.40/x
  3. Step 3: Cross multiply
    307,712.16x = 461,252.88 × 118,121.40
  4. Step 4: Simplify right side
    307,712.16x = 54,483,835,939.63
  5. Step 5: Solve for x
    x = 54,483,835,939.63/307,712.16
  6. Step 6: Final answer
    x = 177,061.04

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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.