Home / 105,590.21-158,368.79-34,512.30

Finding the Fourth Proportional to 105,590.21, 158,368.79 and 34,512.30

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Solution

The fourth proportional to 105,590.21, 158,368.79 and 34,512.30 is: 51,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,590.21 : 158,368.79 = 34,512.30 : x
  2. Step 2: Convert to fraction form
    105,590.21/158,368.79 = 34,512.30/x
  3. Step 3: Cross multiply
    105,590.21x = 158,368.79 × 34,512.30
  4. Step 4: Simplify right side
    105,590.21x = 5,465,671,018.56
  5. Step 5: Solve for x
    x = 5,465,671,018.56/105,590.21
  6. Step 6: Final answer
    x = 51,763.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.