Home / 161,328.32-242,004-42,999.04

Finding the Fourth Proportional to 161,328.32, 242,004 and 42,999.04

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Solution

The fourth proportional to 161,328.32, 242,004 and 42,999.04 is: 64,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,328.32 : 242,004 = 42,999.04 : x
  2. Step 2: Convert to fraction form
    161,328.32/242,004 = 42,999.04/x
  3. Step 3: Cross multiply
    161,328.32x = 242,004 × 42,999.04
  4. Step 4: Simplify right side
    161,328.32x = 10,405,939,676.16
  5. Step 5: Solve for x
    x = 10,405,939,676.16/161,328.32
  6. Step 6: Final answer
    x = 64,501.63

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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.