Home / 145,349.95-200,558.61-80,817.39

Finding the Fourth Proportional to 145,349.95, 200,558.61 and 80,817.39

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Solution

The fourth proportional to 145,349.95, 200,558.61 and 80,817.39 is: 111,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,349.95 : 200,558.61 = 80,817.39 : x
  2. Step 2: Convert to fraction form
    145,349.95/200,558.61 = 80,817.39/x
  3. Step 3: Cross multiply
    145,349.95x = 200,558.61 × 80,817.39
  4. Step 4: Simplify right side
    145,349.95x = 16,208,623,402.23
  5. Step 5: Solve for x
    x = 16,208,623,402.23/145,349.95
  6. Step 6: Final answer
    x = 111,514.48

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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.