Home / 210,131.09-289,969.08-119,509.10

Finding the Fourth Proportional to 210,131.09, 289,969.08 and 119,509.10

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Solution

The fourth proportional to 210,131.09, 289,969.08 and 119,509.10 is: 164,915.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,131.09 : 289,969.08 = 119,509.10 : x
  2. Step 2: Convert to fraction form
    210,131.09/289,969.08 = 119,509.10/x
  3. Step 3: Cross multiply
    210,131.09x = 289,969.08 × 119,509.10
  4. Step 4: Simplify right side
    210,131.09x = 34,653,942,328.78
  5. Step 5: Solve for x
    x = 34,653,942,328.78/210,131.09
  6. Step 6: Final answer
    x = 164,915.83

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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.