Home / 209,484.19-289,085.75-113,989.24

Finding the Fourth Proportional to 209,484.19, 289,085.75 and 113,989.24

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Solution

The fourth proportional to 209,484.19, 289,085.75 and 113,989.24 is: 157,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,484.19 : 289,085.75 = 113,989.24 : x
  2. Step 2: Convert to fraction form
    209,484.19/289,085.75 = 113,989.24/x
  3. Step 3: Cross multiply
    209,484.19x = 289,085.75 × 113,989.24
  4. Step 4: Simplify right side
    209,484.19x = 32,952,664,937.33
  5. Step 5: Solve for x
    x = 32,952,664,937.33/209,484.19
  6. Step 6: Final answer
    x = 157,303.83

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1.5x scale

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.