Home / 105,721,910.23-145,923,054.27-72,244,947.19

Finding the Fourth Proportional to 105,721,910.23, 145,923,054.27 and 72,244,947.19

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Solution

The fourth proportional to 105,721,910.23, 145,923,054.27 and 72,244,947.19 is: 99,716,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,721,910.23 : 145,923,054.27 = 72,244,947.19 : x
  2. Step 2: Convert to fraction form
    105,721,910.23/145,923,054.27 = 72,244,947.19/x
  3. Step 3: Cross multiply
    105,721,910.23x = 145,923,054.27 × 72,244,947.19
  4. Step 4: Simplify right side
    105,721,910.23x = 10,542,203,349,539,654
  5. Step 5: Solve for x
    x = 10,542,203,349,539,654/105,721,910.23
  6. Step 6: Final answer
    x = 99,716,353.28

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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.