Home / 209,557.67-289,181.55-118,908.22

Finding the Fourth Proportional to 209,557.67, 289,181.55 and 118,908.22

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Solution

The fourth proportional to 209,557.67, 289,181.55 and 118,908.22 is: 164,088.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,557.67 : 289,181.55 = 118,908.22 : x
  2. Step 2: Convert to fraction form
    209,557.67/289,181.55 = 118,908.22/x
  3. Step 3: Cross multiply
    209,557.67x = 289,181.55 × 118,908.22
  4. Step 4: Simplify right side
    209,557.67x = 34,386,063,367.34
  5. Step 5: Solve for x
    x = 34,386,063,367.34/209,557.67
  6. Step 6: Final answer
    x = 164,088.78

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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.