Home / 137,319.50-205,849.35-103,533.05

Finding the Fourth Proportional to 137,319.50, 205,849.35 and 103,533.05

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Solution

The fourth proportional to 137,319.50, 205,849.35 and 103,533.05 is: 155,201.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,319.50 : 205,849.35 = 103,533.05 : x
  2. Step 2: Convert to fraction form
    137,319.50/205,849.35 = 103,533.05/x
  3. Step 3: Cross multiply
    137,319.50x = 205,849.35 × 103,533.05
  4. Step 4: Simplify right side
    137,319.50x = 21,312,211,560.64
  5. Step 5: Solve for x
    x = 21,312,211,560.64/137,319.50
  6. Step 6: Final answer
    x = 155,201.64

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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.