Home / 99,433.08-137,220.18-54,113.52

Finding the Fourth Proportional to 99,433.08, 137,220.18 and 54,113.52

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Solution

The fourth proportional to 99,433.08, 137,220.18 and 54,113.52 is: 74,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,433.08 : 137,220.18 = 54,113.52 : x
  2. Step 2: Convert to fraction form
    99,433.08/137,220.18 = 54,113.52/x
  3. Step 3: Cross multiply
    99,433.08x = 137,220.18 × 54,113.52
  4. Step 4: Simplify right side
    99,433.08x = 7,425,466,954.83
  5. Step 5: Solve for x
    x = 7,425,466,954.83/99,433.08
  6. Step 6: Final answer
    x = 74,678.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.