Home / 145,122.18-200,262.81-80,594.74

Finding the Fourth Proportional to 145,122.18, 200,262.81 and 80,594.74

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Solution

The fourth proportional to 145,122.18, 200,262.81 and 80,594.74 is: 111,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,122.18 : 200,262.81 = 80,594.74 : x
  2. Step 2: Convert to fraction form
    145,122.18/200,262.81 = 80,594.74/x
  3. Step 3: Cross multiply
    145,122.18x = 200,262.81 × 80,594.74
  4. Step 4: Simplify right side
    145,122.18x = 16,140,129,656.18
  5. Step 5: Solve for x
    x = 16,140,129,656.18/145,122.18
  6. Step 6: Final answer
    x = 111,217.53

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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.