Home / 105,055.11-157,451.45-67,515.26

Finding the Fourth Proportional to 105,055.11, 157,451.45 and 67,515.26

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Solution

The fourth proportional to 105,055.11, 157,451.45 and 67,515.26 is: 101,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,055.11 : 157,451.45 = 67,515.26 : x
  2. Step 2: Convert to fraction form
    105,055.11/157,451.45 = 67,515.26/x
  3. Step 3: Cross multiply
    105,055.11x = 157,451.45 × 67,515.26
  4. Step 4: Simplify right side
    105,055.11x = 10,630,374,459.29
  5. Step 5: Solve for x
    x = 10,630,374,459.29/105,055.11
  6. Step 6: Final answer
    x = 101,188.55

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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.