Home / 247,122.48-341,025.32-139,688.72

Finding the Fourth Proportional to 247,122.48, 341,025.32 and 139,688.72

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Solution

The fourth proportional to 247,122.48, 341,025.32 and 139,688.72 is: 192,768.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,122.48 : 341,025.32 = 139,688.72 : x
  2. Step 2: Convert to fraction form
    247,122.48/341,025.32 = 139,688.72/x
  3. Step 3: Cross multiply
    247,122.48x = 341,025.32 × 139,688.72
  4. Step 4: Simplify right side
    247,122.48x = 47,637,390,438.39
  5. Step 5: Solve for x
    x = 47,637,390,438.39/247,122.48
  6. Step 6: Final answer
    x = 192,768.34

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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.