Home / 154,420.30-231,457.65-87,892.30

Finding the Fourth Proportional to 154,420.30, 231,457.65 and 87,892.30

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Solution

The fourth proportional to 154,420.30, 231,457.65 and 87,892.30 is: 131,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,420.30 : 231,457.65 = 87,892.30 : x
  2. Step 2: Convert to fraction form
    154,420.30/231,457.65 = 87,892.30/x
  3. Step 3: Cross multiply
    154,420.30x = 231,457.65 × 87,892.30
  4. Step 4: Simplify right side
    154,420.30x = 20,343,345,211.10
  5. Step 5: Solve for x
    x = 20,343,345,211.10/154,420.30
  6. Step 6: Final answer
    x = 131,740.10

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1.5x scale

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.