Home / 121,925,376-168,250,927.68-72,367,905.60

Finding the Fourth Proportional to 121,925,376, 168,250,927.68 and 72,367,905.60

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Solution

The fourth proportional to 121,925,376, 168,250,927.68 and 72,367,905.60 is: 99,864,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,925,376 : 168,250,927.68 = 72,367,905.60 : x
  2. Step 2: Convert to fraction form
    121,925,376/168,250,927.68 = 72,367,905.60/x
  3. Step 3: Cross multiply
    121,925,376x = 168,250,927.68 × 72,367,905.60
  4. Step 4: Simplify right side
    121,925,376x = 12,175,967,251,458,666
  5. Step 5: Solve for x
    x = 12,175,967,251,458,666/121,925,376
  6. Step 6: Final answer
    x = 99,864,094.34

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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.