Home / 113,191.16-156,138.74-70,675.88

Finding the Fourth Proportional to 113,191.16, 156,138.74 and 70,675.88

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Solution

The fourth proportional to 113,191.16, 156,138.74 and 70,675.88 is: 97,492.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,191.16 : 156,138.74 = 70,675.88 : x
  2. Step 2: Convert to fraction form
    113,191.16/156,138.74 = 70,675.88/x
  3. Step 3: Cross multiply
    113,191.16x = 156,138.74 × 70,675.88
  4. Step 4: Simplify right side
    113,191.16x = 11,035,241,717.52
  5. Step 5: Solve for x
    x = 11,035,241,717.52/113,191.16
  6. Step 6: Final answer
    x = 97,492.09

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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.