Home / 144,303.96-199,138.88-80,641.74

Finding the Fourth Proportional to 144,303.96, 199,138.88 and 80,641.74

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Solution

The fourth proportional to 144,303.96, 199,138.88 and 80,641.74 is: 111,285.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,303.96 : 199,138.88 = 80,641.74 : x
  2. Step 2: Convert to fraction form
    144,303.96/199,138.88 = 80,641.74/x
  3. Step 3: Cross multiply
    144,303.96x = 199,138.88 × 80,641.74
  4. Step 4: Simplify right side
    144,303.96x = 16,058,905,784.85
  5. Step 5: Solve for x
    x = 16,058,905,784.85/144,303.96
  6. Step 6: Final answer
    x = 111,285.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.