Home / 99,869.36-137,585.28-69,599.60

Finding the Fourth Proportional to 99,869.36, 137,585.28 and 69,599.60

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Solution

The fourth proportional to 99,869.36, 137,585.28 and 69,599.60 is: 95,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,869.36 : 137,585.28 = 69,599.60 : x
  2. Step 2: Convert to fraction form
    99,869.36/137,585.28 = 69,599.60/x
  3. Step 3: Cross multiply
    99,869.36x = 137,585.28 × 69,599.60
  4. Step 4: Simplify right side
    99,869.36x = 9,575,880,453.89
  5. Step 5: Solve for x
    x = 9,575,880,453.89/99,869.36
  6. Step 6: Final answer
    x = 95,884.07

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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.