Home / 122,178,803.14-168,605,261.94-90,956,348.74

Finding the Fourth Proportional to 122,178,803.14, 168,605,261.94 and 90,956,348.74

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Solution

The fourth proportional to 122,178,803.14, 168,605,261.94 and 90,956,348.74 is: 125,518,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,178,803.14 : 168,605,261.94 = 90,956,348.74 : x
  2. Step 2: Convert to fraction form
    122,178,803.14/168,605,261.94 = 90,956,348.74/x
  3. Step 3: Cross multiply
    122,178,803.14x = 168,605,261.94 × 90,956,348.74
  4. Step 4: Simplify right side
    122,178,803.14x = 15,335,719,004,413,688
  5. Step 5: Solve for x
    x = 15,335,719,004,413,688/122,178,803.14
  6. Step 6: Final answer
    x = 125,518,654.71

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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.