Home / 139,158.03-192,038.16-75,495.81

Finding the Fourth Proportional to 139,158.03, 192,038.16 and 75,495.81

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Solution

The fourth proportional to 139,158.03, 192,038.16 and 75,495.81 is: 104,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,158.03 : 192,038.16 = 75,495.81 : x
  2. Step 2: Convert to fraction form
    139,158.03/192,038.16 = 75,495.81/x
  3. Step 3: Cross multiply
    139,158.03x = 192,038.16 × 75,495.81
  4. Step 4: Simplify right side
    139,158.03x = 14,498,076,440.11
  5. Step 5: Solve for x
    x = 14,498,076,440.11/139,158.03
  6. Step 6: Final answer
    x = 104,184.26

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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.