Home / 208,125.89-287,122.07-122,041.16

Finding the Fourth Proportional to 208,125.89, 287,122.07 and 122,041.16

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Solution

The fourth proportional to 208,125.89, 287,122.07 and 122,041.16 is: 168,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,125.89 : 287,122.07 = 122,041.16 : x
  2. Step 2: Convert to fraction form
    208,125.89/287,122.07 = 122,041.16/x
  3. Step 3: Cross multiply
    208,125.89x = 287,122.07 × 122,041.16
  4. Step 4: Simplify right side
    208,125.89x = 35,040,712,045.66
  5. Step 5: Solve for x
    x = 35,040,712,045.66/208,125.89
  6. Step 6: Final answer
    x = 168,363.06

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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.