Home / 211,555.22-317,415.81-93,143.50

Finding the Fourth Proportional to 211,555.22, 317,415.81 and 93,143.50

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Solution

The fourth proportional to 211,555.22, 317,415.81 and 93,143.50 is: 139,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,555.22 : 317,415.81 = 93,143.50 : x
  2. Step 2: Convert to fraction form
    211,555.22/317,415.81 = 93,143.50/x
  3. Step 3: Cross multiply
    211,555.22x = 317,415.81 × 93,143.50
  4. Step 4: Simplify right side
    211,555.22x = 29,565,219,498.74
  5. Step 5: Solve for x
    x = 29,565,219,498.74/211,555.22
  6. Step 6: Final answer
    x = 139,751.78

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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.