Home / 121,868,212.64-168,175,095.55-68,222,123.24

Finding the Fourth Proportional to 121,868,212.64, 168,175,095.55 and 68,222,123.24

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Solution

The fourth proportional to 121,868,212.64, 168,175,095.55 and 68,222,123.24 is: 94,144,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,868,212.64 : 168,175,095.55 = 68,222,123.24 : x
  2. Step 2: Convert to fraction form
    121,868,212.64/168,175,095.55 = 68,222,123.24/x
  3. Step 3: Cross multiply
    121,868,212.64x = 168,175,095.55 × 68,222,123.24
  4. Step 4: Simplify right side
    121,868,212.64x = 11,473,262,093,499,446
  5. Step 5: Solve for x
    x = 11,473,262,093,499,446/121,868,212.64
  6. Step 6: Final answer
    x = 94,144,829.45

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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.