Home / 209,430.14-314,164.66-84,780.86

Finding the Fourth Proportional to 209,430.14, 314,164.66 and 84,780.86

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Solution

The fourth proportional to 209,430.14, 314,164.66 and 84,780.86 is: 127,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,430.14 : 314,164.66 = 84,780.86 : x
  2. Step 2: Convert to fraction form
    209,430.14/314,164.66 = 84,780.86/x
  3. Step 3: Cross multiply
    209,430.14x = 314,164.66 × 84,780.86
  4. Step 4: Simplify right side
    209,430.14x = 26,635,150,056.41
  5. Step 5: Solve for x
    x = 26,635,150,056.41/209,430.14
  6. Step 6: Final answer
    x = 127,179.16

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1.5x scale

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.