Home / 247,111.85-341,010.65-139,678.10

Finding the Fourth Proportional to 247,111.85, 341,010.65 and 139,678.10

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Solution

The fourth proportional to 247,111.85, 341,010.65 and 139,678.10 is: 192,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,111.85 : 341,010.65 = 139,678.10 : x
  2. Step 2: Convert to fraction form
    247,111.85/341,010.65 = 139,678.10/x
  3. Step 3: Cross multiply
    247,111.85x = 341,010.65 × 139,678.10
  4. Step 4: Simplify right side
    247,111.85x = 47,631,719,671.77
  5. Step 5: Solve for x
    x = 47,631,719,671.77/247,111.85
  6. Step 6: Final answer
    x = 192,753.68

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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.