Home / 211,756.32-317,549.70-93,343.50

Finding the Fourth Proportional to 211,756.32, 317,549.70 and 93,343.50

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Solution

The fourth proportional to 211,756.32, 317,549.70 and 93,343.50 is: 139,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,756.32 : 317,549.70 = 93,343.50 : x
  2. Step 2: Convert to fraction form
    211,756.32/317,549.70 = 93,343.50/x
  3. Step 3: Cross multiply
    211,756.32x = 317,549.70 × 93,343.50
  4. Step 4: Simplify right side
    211,756.32x = 29,641,200,421.95
  5. Step 5: Solve for x
    x = 29,641,200,421.95/211,756.32
  6. Step 6: Final answer
    x = 139,977.88

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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.