Home / 136,353.03-204,461.10-79,445.36

Finding the Fourth Proportional to 136,353.03, 204,461.10 and 79,445.36

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Solution

The fourth proportional to 136,353.03, 204,461.10 and 79,445.36 is: 119,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,353.03 : 204,461.10 = 79,445.36 : x
  2. Step 2: Convert to fraction form
    136,353.03/204,461.10 = 79,445.36/x
  3. Step 3: Cross multiply
    136,353.03x = 204,461.10 × 79,445.36
  4. Step 4: Simplify right side
    136,353.03x = 16,243,485,695.50
  5. Step 5: Solve for x
    x = 16,243,485,695.50/136,353.03
  6. Step 6: Final answer
    x = 119,128.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.