Home / 209,513.31-289,134.89-118,873.10

Finding the Fourth Proportional to 209,513.31, 289,134.89 and 118,873.10

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Solution

The fourth proportional to 209,513.31, 289,134.89 and 118,873.10 is: 164,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,513.31 : 289,134.89 = 118,873.10 : x
  2. Step 2: Convert to fraction form
    209,513.31/289,134.89 = 118,873.10/x
  3. Step 3: Cross multiply
    209,513.31x = 289,134.89 × 118,873.10
  4. Step 4: Simplify right side
    209,513.31x = 34,370,358,652.42
  5. Step 5: Solve for x
    x = 34,370,358,652.42/209,513.31
  6. Step 6: Final answer
    x = 164,048.57

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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.