Home / 99,856.84-137,802.66-54,535.16

Finding the Fourth Proportional to 99,856.84, 137,802.66 and 54,535.16

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Solution

The fourth proportional to 99,856.84, 137,802.66 and 54,535.16 is: 75,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.84 : 137,802.66 = 54,535.16 : x
  2. Step 2: Convert to fraction form
    99,856.84/137,802.66 = 54,535.16/x
  3. Step 3: Cross multiply
    99,856.84x = 137,802.66 × 54,535.16
  4. Step 4: Simplify right side
    99,856.84x = 7,515,090,111.53
  5. Step 5: Solve for x
    x = 7,515,090,111.53/99,856.84
  6. Step 6: Final answer
    x = 75,258.64

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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.