Home / 98,935.88-148,157.64-69,214.55

Finding the Fourth Proportional to 98,935.88, 148,157.64 and 69,214.55

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Solution

The fourth proportional to 98,935.88, 148,157.64 and 69,214.55 is: 103,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,935.88 : 148,157.64 = 69,214.55 : x
  2. Step 2: Convert to fraction form
    98,935.88/148,157.64 = 69,214.55/x
  3. Step 3: Cross multiply
    98,935.88x = 148,157.64 × 69,214.55
  4. Step 4: Simplify right side
    98,935.88x = 10,254,663,640.87
  5. Step 5: Solve for x
    x = 10,254,663,640.87/98,935.88
  6. Step 6: Final answer
    x = 103,649.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.