Home / 156,971.95-235,512.60-68,289.10

Finding the Fourth Proportional to 156,971.95, 235,512.60 and 68,289.10

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Solution

The fourth proportional to 156,971.95, 235,512.60 and 68,289.10 is: 102,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.95 : 235,512.60 = 68,289.10 : x
  2. Step 2: Convert to fraction form
    156,971.95/235,512.60 = 68,289.10/x
  3. Step 3: Cross multiply
    156,971.95x = 235,512.60 × 68,289.10
  4. Step 4: Simplify right side
    156,971.95x = 16,082,943,492.66
  5. Step 5: Solve for x
    x = 16,082,943,492.66/156,971.95
  6. Step 6: Final answer
    x = 102,457.44

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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.