Home / 134,916.18-186,155.37-78,297.18

Finding the Fourth Proportional to 134,916.18, 186,155.37 and 78,297.18

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Solution

The fourth proportional to 134,916.18, 186,155.37 and 78,297.18 is: 108,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,916.18 : 186,155.37 = 78,297.18 : x
  2. Step 2: Convert to fraction form
    134,916.18/186,155.37 = 78,297.18/x
  3. Step 3: Cross multiply
    134,916.18x = 186,155.37 × 78,297.18
  4. Step 4: Simplify right side
    134,916.18x = 14,575,440,512.86
  5. Step 5: Solve for x
    x = 14,575,440,512.86/134,916.18
  6. Step 6: Final answer
    x = 108,033.30

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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.