Home / 437,561.20-656,341.80-105,137.20

Finding the Fourth Proportional to 437,561.20, 656,341.80 and 105,137.20

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Solution

The fourth proportional to 437,561.20, 656,341.80 and 105,137.20 is: 157,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,561.20 : 656,341.80 = 105,137.20 : x
  2. Step 2: Convert to fraction form
    437,561.20/656,341.80 = 105,137.20/x
  3. Step 3: Cross multiply
    437,561.20x = 656,341.80 × 105,137.20
  4. Step 4: Simplify right side
    437,561.20x = 69,005,939,094.96
  5. Step 5: Solve for x
    x = 69,005,939,094.96/437,561.20
  6. Step 6: Final answer
    x = 157,705.80

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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.