Home / 205,583.44-308,384.16-70,740.40

Finding the Fourth Proportional to 205,583.44, 308,384.16 and 70,740.40

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Solution

The fourth proportional to 205,583.44, 308,384.16 and 70,740.40 is: 106,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,583.44 : 308,384.16 = 70,740.40 : x
  2. Step 2: Convert to fraction form
    205,583.44/308,384.16 = 70,740.40/x
  3. Step 3: Cross multiply
    205,583.44x = 308,384.16 × 70,740.40
  4. Step 4: Simplify right side
    205,583.44x = 21,815,218,832.06
  5. Step 5: Solve for x
    x = 21,815,218,832.06/205,583.44
  6. Step 6: Final answer
    x = 106,113.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.