Home / 209,579.48-314,088.80-102,800.16

Finding the Fourth Proportional to 209,579.48, 314,088.80 and 102,800.16

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Solution

The fourth proportional to 209,579.48, 314,088.80 and 102,800.16 is: 154,062.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,579.48 : 314,088.80 = 102,800.16 : x
  2. Step 2: Convert to fraction form
    209,579.48/314,088.80 = 102,800.16/x
  3. Step 3: Cross multiply
    209,579.48x = 314,088.80 × 102,800.16
  4. Step 4: Simplify right side
    209,579.48x = 32,288,378,894.21
  5. Step 5: Solve for x
    x = 32,288,378,894.21/209,579.48
  6. Step 6: Final answer
    x = 154,062.69

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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.