Home / 209,730.19-314,636.40-83,346.88

Finding the Fourth Proportional to 209,730.19, 314,636.40 and 83,346.88

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Solution

The fourth proportional to 209,730.19, 314,636.40 and 83,346.88 is: 125,036.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,730.19 : 314,636.40 = 83,346.88 : x
  2. Step 2: Convert to fraction form
    209,730.19/314,636.40 = 83,346.88/x
  3. Step 3: Cross multiply
    209,730.19x = 314,636.40 × 83,346.88
  4. Step 4: Simplify right side
    209,730.19x = 26,223,962,274.43
  5. Step 5: Solve for x
    x = 26,223,962,274.43/209,730.19
  6. Step 6: Final answer
    x = 125,036.66

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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.