Home / 145,275.25-200,490.78-88,697.56

Finding the Fourth Proportional to 145,275.25, 200,490.78 and 88,697.56

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Solution

The fourth proportional to 145,275.25, 200,490.78 and 88,697.56 is: 122,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,275.25 : 200,490.78 = 88,697.56 : x
  2. Step 2: Convert to fraction form
    145,275.25/200,490.78 = 88,697.56/x
  3. Step 3: Cross multiply
    145,275.25x = 200,490.78 × 88,697.56
  4. Step 4: Simplify right side
    145,275.25x = 17,783,042,988.50
  5. Step 5: Solve for x
    x = 17,783,042,988.50/145,275.25
  6. Step 6: Final answer
    x = 122,409.31

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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.