Home / 162,490.10-243,645.08-66,494.74

Finding the Fourth Proportional to 162,490.10, 243,645.08 and 66,494.74

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Solution

The fourth proportional to 162,490.10, 243,645.08 and 66,494.74 is: 99,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,490.10 : 243,645.08 = 66,494.74 : x
  2. Step 2: Convert to fraction form
    162,490.10/243,645.08 = 66,494.74/x
  3. Step 3: Cross multiply
    162,490.10x = 243,645.08 × 66,494.74
  4. Step 4: Simplify right side
    162,490.10x = 16,201,116,246.88
  5. Step 5: Solve for x
    x = 16,201,116,246.88/162,490.10
  6. Step 6: Final answer
    x = 99,705.25

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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.