Home / 208,018.08-287,085.89-127,499.13

Finding the Fourth Proportional to 208,018.08, 287,085.89 and 127,499.13

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Solution

The fourth proportional to 208,018.08, 287,085.89 and 127,499.13 is: 175,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,018.08 : 287,085.89 = 127,499.13 : x
  2. Step 2: Convert to fraction form
    208,018.08/287,085.89 = 127,499.13/x
  3. Step 3: Cross multiply
    208,018.08x = 287,085.89 × 127,499.13
  4. Step 4: Simplify right side
    208,018.08x = 36,603,200,572.78
  5. Step 5: Solve for x
    x = 36,603,200,572.78/208,018.08
  6. Step 6: Final answer
    x = 175,961.63

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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.