Home / 280,132.31-420,202.13-93,143.81

Finding the Fourth Proportional to 280,132.31, 420,202.13 and 93,143.81

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Solution

The fourth proportional to 280,132.31, 420,202.13 and 93,143.81 is: 139,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,132.31 : 420,202.13 = 93,143.81 : x
  2. Step 2: Convert to fraction form
    280,132.31/420,202.13 = 93,143.81/x
  3. Step 3: Cross multiply
    280,132.31x = 420,202.13 × 93,143.81
  4. Step 4: Simplify right side
    280,132.31x = 39,139,227,943.10
  5. Step 5: Solve for x
    x = 39,139,227,943.10/280,132.31
  6. Step 6: Final answer
    x = 139,716.93

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1.5x scale

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.