Home / 99,111.80-136,771.92-53,787.84

Finding the Fourth Proportional to 99,111.80, 136,771.92 and 53,787.84

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Solution

The fourth proportional to 99,111.80, 136,771.92 and 53,787.84 is: 74,225.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,111.80 : 136,771.92 = 53,787.84 : x
  2. Step 2: Convert to fraction form
    99,111.80/136,771.92 = 53,787.84/x
  3. Step 3: Cross multiply
    99,111.80x = 136,771.92 × 53,787.84
  4. Step 4: Simplify right side
    99,111.80x = 7,356,666,149.45
  5. Step 5: Solve for x
    x = 7,356,666,149.45/99,111.80
  6. Step 6: Final answer
    x = 74,225.94

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1.5x scale

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.