Home / 121,012.60-181,562.10-50,913.40

Finding the Fourth Proportional to 121,012.60, 181,562.10 and 50,913.40

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Solution

The fourth proportional to 121,012.60, 181,562.10 and 50,913.40 is: 76,388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,012.60 : 181,562.10 = 50,913.40 : x
  2. Step 2: Convert to fraction form
    121,012.60/181,562.10 = 50,913.40/x
  3. Step 3: Cross multiply
    121,012.60x = 181,562.10 × 50,913.40
  4. Step 4: Simplify right side
    121,012.60x = 9,243,943,822.14
  5. Step 5: Solve for x
    x = 9,243,943,822.14/121,012.60
  6. Step 6: Final answer
    x = 76,388.28

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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.