Home / 99,645.39-149,398.02-46,280.72

Finding the Fourth Proportional to 99,645.39, 149,398.02 and 46,280.72

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Solution

The fourth proportional to 99,645.39, 149,398.02 and 46,280.72 is: 69,388.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645.39 : 149,398.02 = 46,280.72 : x
  2. Step 2: Convert to fraction form
    99,645.39/149,398.02 = 46,280.72/x
  3. Step 3: Cross multiply
    99,645.39x = 149,398.02 × 46,280.72
  4. Step 4: Simplify right side
    99,645.39x = 6,914,247,465.31
  5. Step 5: Solve for x
    x = 6,914,247,465.31/99,645.39
  6. Step 6: Final answer
    x = 69,388.53

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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.