Home / 113,856.09-157,165.71-101,898.66

Finding the Fourth Proportional to 113,856.09, 157,165.71 and 101,898.66

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Solution

The fourth proportional to 113,856.09, 157,165.71 and 101,898.66 is: 140,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,856.09 : 157,165.71 = 101,898.66 : x
  2. Step 2: Convert to fraction form
    113,856.09/157,165.71 = 101,898.66/x
  3. Step 3: Cross multiply
    113,856.09x = 157,165.71 × 101,898.66
  4. Step 4: Simplify right side
    113,856.09x = 16,014,975,246.95
  5. Step 5: Solve for x
    x = 16,014,975,246.95/113,856.09
  6. Step 6: Final answer
    x = 140,659.80

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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.