Home / 192,312.67-288,533.09-121,153.15

Finding the Fourth Proportional to 192,312.67, 288,533.09 and 121,153.15

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Solution

The fourth proportional to 192,312.67, 288,533.09 and 121,153.15 is: 181,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,312.67 : 288,533.09 = 121,153.15 : x
  2. Step 2: Convert to fraction form
    192,312.67/288,533.09 = 121,153.15/x
  3. Step 3: Cross multiply
    192,312.67x = 288,533.09 × 121,153.15
  4. Step 4: Simplify right side
    192,312.67x = 34,956,692,126.97
  5. Step 5: Solve for x
    x = 34,956,692,126.97/192,312.67
  6. Step 6: Final answer
    x = 181,770.10

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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.