Home / 99,945.08-149,813.13-47,291.84

Finding the Fourth Proportional to 99,945.08, 149,813.13 and 47,291.84

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Solution

The fourth proportional to 99,945.08, 149,813.13 and 47,291.84 is: 70,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,945.08 : 149,813.13 = 47,291.84 : x
  2. Step 2: Convert to fraction form
    99,945.08/149,813.13 = 47,291.84/x
  3. Step 3: Cross multiply
    99,945.08x = 149,813.13 × 47,291.84
  4. Step 4: Simplify right side
    99,945.08x = 7,084,938,573.86
  5. Step 5: Solve for x
    x = 7,084,938,573.86/99,945.08
  6. Step 6: Final answer
    x = 70,888.32

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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.