Home / 99,228.10-136,934.23-53,905.72

Finding the Fourth Proportional to 99,228.10, 136,934.23 and 53,905.72

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Solution

The fourth proportional to 99,228.10, 136,934.23 and 53,905.72 is: 74,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,228.10 : 136,934.23 = 53,905.72 : x
  2. Step 2: Convert to fraction form
    99,228.10/136,934.23 = 53,905.72/x
  3. Step 3: Cross multiply
    99,228.10x = 136,934.23 × 53,905.72
  4. Step 4: Simplify right side
    99,228.10x = 7,381,538,260.80
  5. Step 5: Solve for x
    x = 7,381,538,260.80/99,228.10
  6. Step 6: Final answer
    x = 74,389.60

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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.