Home / 113,012.96-155,931.68-67,682.52

Finding the Fourth Proportional to 113,012.96, 155,931.68 and 67,682.52

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Solution

The fourth proportional to 113,012.96, 155,931.68 and 67,682.52 is: 93,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,012.96 : 155,931.68 = 67,682.52 : x
  2. Step 2: Convert to fraction form
    113,012.96/155,931.68 = 67,682.52/x
  3. Step 3: Cross multiply
    113,012.96x = 155,931.68 × 67,682.52
  4. Step 4: Simplify right side
    113,012.96x = 10,553,849,219.44
  5. Step 5: Solve for x
    x = 10,553,849,219.44/113,012.96
  6. Step 6: Final answer
    x = 93,386.19

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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.