Home / 99,369.17-137,088.99-56,339.60

Finding the Fourth Proportional to 99,369.17, 137,088.99 and 56,339.60

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Solution

The fourth proportional to 99,369.17, 137,088.99 and 56,339.60 is: 77,725.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,369.17 : 137,088.99 = 56,339.60 : x
  2. Step 2: Convert to fraction form
    99,369.17/137,088.99 = 56,339.60/x
  3. Step 3: Cross multiply
    99,369.17x = 137,088.99 × 56,339.60
  4. Step 4: Simplify right side
    99,369.17x = 7,723,538,861.00
  5. Step 5: Solve for x
    x = 7,723,538,861.00/99,369.17
  6. Step 6: Final answer
    x = 77,725.71

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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.