Home / 99,724.64-137,802.48-94,865.12

Finding the Fourth Proportional to 99,724.64, 137,802.48 and 94,865.12

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Solution

The fourth proportional to 99,724.64, 137,802.48 and 94,865.12 is: 131,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,724.64 : 137,802.48 = 94,865.12 : x
  2. Step 2: Convert to fraction form
    99,724.64/137,802.48 = 94,865.12/x
  3. Step 3: Cross multiply
    99,724.64x = 137,802.48 × 94,865.12
  4. Step 4: Simplify right side
    99,724.64x = 13,072,648,801.50
  5. Step 5: Solve for x
    x = 13,072,648,801.50/99,724.64
  6. Step 6: Final answer
    x = 131,087.45

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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.