Home / 210,015.11-289,810.34-119,359.10

Finding the Fourth Proportional to 210,015.11, 289,810.34 and 119,359.10

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Solution

The fourth proportional to 210,015.11, 289,810.34 and 119,359.10 is: 164,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015.11 : 289,810.34 = 119,359.10 : x
  2. Step 2: Convert to fraction form
    210,015.11/289,810.34 = 119,359.10/x
  3. Step 3: Cross multiply
    210,015.11x = 289,810.34 × 119,359.10
  4. Step 4: Simplify right side
    210,015.11x = 34,591,500,756.30
  5. Step 5: Solve for x
    x = 34,591,500,756.30/210,015.11
  6. Step 6: Final answer
    x = 164,709.58

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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.