Home / 154,042.29-212,515.11-93,603.33

Finding the Fourth Proportional to 154,042.29, 212,515.11 and 93,603.33

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Solution

The fourth proportional to 154,042.29, 212,515.11 and 93,603.33 is: 129,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,042.29 : 212,515.11 = 93,603.33 : x
  2. Step 2: Convert to fraction form
    154,042.29/212,515.11 = 93,603.33/x
  3. Step 3: Cross multiply
    154,042.29x = 212,515.11 × 93,603.33
  4. Step 4: Simplify right side
    154,042.29x = 19,892,121,971.32
  5. Step 5: Solve for x
    x = 19,892,121,971.32/154,042.29
  6. Step 6: Final answer
    x = 129,134.16

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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.