Home / 113,234.40-169,851.60-87,071.20

Finding the Fourth Proportional to 113,234.40, 169,851.60 and 87,071.20

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Solution

The fourth proportional to 113,234.40, 169,851.60 and 87,071.20 is: 130,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,234.40 : 169,851.60 = 87,071.20 : x
  2. Step 2: Convert to fraction form
    113,234.40/169,851.60 = 87,071.20/x
  3. Step 3: Cross multiply
    113,234.40x = 169,851.60 × 87,071.20
  4. Step 4: Simplify right side
    113,234.40x = 14,789,182,633.92
  5. Step 5: Solve for x
    x = 14,789,182,633.92/113,234.40
  6. Step 6: Final answer
    x = 130,606.80

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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.