Home / 105,714.87-158,261.27-70,567.35

Finding the Fourth Proportional to 105,714.87, 158,261.27 and 70,567.35

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Solution

The fourth proportional to 105,714.87, 158,261.27 and 70,567.35 is: 105,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,714.87 : 158,261.27 = 70,567.35 : x
  2. Step 2: Convert to fraction form
    105,714.87/158,261.27 = 70,567.35/x
  3. Step 3: Cross multiply
    105,714.87x = 158,261.27 × 70,567.35
  4. Step 4: Simplify right side
    105,714.87x = 11,168,078,078.70
  5. Step 5: Solve for x
    x = 11,168,078,078.70/105,714.87
  6. Step 6: Final answer
    x = 105,643.40

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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.