Home / 154,240.92-212,863.31-86,264.21

Finding the Fourth Proportional to 154,240.92, 212,863.31 and 86,264.21

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Solution

The fourth proportional to 154,240.92, 212,863.31 and 86,264.21 is: 119,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,240.92 : 212,863.31 = 86,264.21 : x
  2. Step 2: Convert to fraction form
    154,240.92/212,863.31 = 86,264.21/x
  3. Step 3: Cross multiply
    154,240.92x = 212,863.31 × 86,264.21
  4. Step 4: Simplify right side
    154,240.92x = 18,362,484,843.81
  5. Step 5: Solve for x
    x = 18,362,484,843.81/154,240.92
  6. Step 6: Final answer
    x = 119,050.67

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1.5x scale

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.