Home / 102,746.21-141,789.24-57,424.16

Finding the Fourth Proportional to 102,746.21, 141,789.24 and 57,424.16

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Solution

The fourth proportional to 102,746.21, 141,789.24 and 57,424.16 is: 79,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,746.21 : 141,789.24 = 57,424.16 : x
  2. Step 2: Convert to fraction form
    102,746.21/141,789.24 = 57,424.16/x
  3. Step 3: Cross multiply
    102,746.21x = 141,789.24 × 57,424.16
  4. Step 4: Simplify right side
    102,746.21x = 8,142,128,358.51
  5. Step 5: Solve for x
    x = 8,142,128,358.51/102,746.21
  6. Step 6: Final answer
    x = 79,245.05

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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.