Home / 145,289.53-200,499.37-80,756.74

Finding the Fourth Proportional to 145,289.53, 200,499.37 and 80,756.74

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Solution

The fourth proportional to 145,289.53, 200,499.37 and 80,756.74 is: 111,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,289.53 : 200,499.37 = 80,756.74 : x
  2. Step 2: Convert to fraction form
    145,289.53/200,499.37 = 80,756.74/x
  3. Step 3: Cross multiply
    145,289.53x = 200,499.37 × 80,756.74
  4. Step 4: Simplify right side
    145,289.53x = 16,191,675,493.25
  5. Step 5: Solve for x
    x = 16,191,675,493.25/145,289.53
  6. Step 6: Final answer
    x = 111,444.20

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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.