Home / 104,973.40-157,076.10-77,325.40

Finding the Fourth Proportional to 104,973.40, 157,076.10 and 77,325.40

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Solution

The fourth proportional to 104,973.40, 157,076.10 and 77,325.40 is: 115,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,973.40 : 157,076.10 = 77,325.40 : x
  2. Step 2: Convert to fraction form
    104,973.40/157,076.10 = 77,325.40/x
  3. Step 3: Cross multiply
    104,973.40x = 157,076.10 × 77,325.40
  4. Step 4: Simplify right side
    104,973.40x = 12,145,972,262.94
  5. Step 5: Solve for x
    x = 12,145,972,262.94/104,973.40
  6. Step 6: Final answer
    x = 115,705.24

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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.