Home / 112,069,216.82-154,705,110.59-72,396,091.65

Finding the Fourth Proportional to 112,069,216.82, 154,705,110.59 and 72,396,091.65

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Solution

The fourth proportional to 112,069,216.82, 154,705,110.59 and 72,396,091.65 is: 99,938,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,069,216.82 : 154,705,110.59 = 72,396,091.65 : x
  2. Step 2: Convert to fraction form
    112,069,216.82/154,705,110.59 = 72,396,091.65/x
  3. Step 3: Cross multiply
    112,069,216.82x = 154,705,110.59 × 72,396,091.65
  4. Step 4: Simplify right side
    112,069,216.82x = 11,200,045,364,635,046
  5. Step 5: Solve for x
    x = 11,200,045,364,635,046/112,069,216.82
  6. Step 6: Final answer
    x = 99,938,642.23

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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.