Home / 208,074.29-287,143.49-117,434.07

Finding the Fourth Proportional to 208,074.29, 287,143.49 and 117,434.07

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Solution

The fourth proportional to 208,074.29, 287,143.49 and 117,434.07 is: 162,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,074.29 : 287,143.49 = 117,434.07 : x
  2. Step 2: Convert to fraction form
    208,074.29/287,143.49 = 117,434.07/x
  3. Step 3: Cross multiply
    208,074.29x = 287,143.49 × 117,434.07
  4. Step 4: Simplify right side
    208,074.29x = 33,720,428,998.29
  5. Step 5: Solve for x
    x = 33,720,428,998.29/208,074.29
  6. Step 6: Final answer
    x = 162,059.57

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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.