Home / 99,328.14-137,073.60-54,007.02

Finding the Fourth Proportional to 99,328.14, 137,073.60 and 54,007.02

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Solution

The fourth proportional to 99,328.14, 137,073.60 and 54,007.02 is: 74,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,328.14 : 137,073.60 = 54,007.02 : x
  2. Step 2: Convert to fraction form
    99,328.14/137,073.60 = 54,007.02/x
  3. Step 3: Cross multiply
    99,328.14x = 137,073.60 × 54,007.02
  4. Step 4: Simplify right side
    99,328.14x = 7,402,936,656.67
  5. Step 5: Solve for x
    x = 7,402,936,656.67/99,328.14
  6. Step 6: Final answer
    x = 74,530.10

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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.