Home / 145,608.12-200,938.77-81,945.99

Finding the Fourth Proportional to 145,608.12, 200,938.77 and 81,945.99

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Solution

The fourth proportional to 145,608.12, 200,938.77 and 81,945.99 is: 113,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,608.12 : 200,938.77 = 81,945.99 : x
  2. Step 2: Convert to fraction form
    145,608.12/200,938.77 = 81,945.99/x
  3. Step 3: Cross multiply
    145,608.12x = 200,938.77 × 81,945.99
  4. Step 4: Simplify right side
    145,608.12x = 16,466,126,437.03
  5. Step 5: Solve for x
    x = 16,466,126,437.03/145,608.12
  6. Step 6: Final answer
    x = 113,085.22

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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.