Home / 161,953.22-223,495.78-90,331.40

Finding the Fourth Proportional to 161,953.22, 223,495.78 and 90,331.40

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Solution

The fourth proportional to 161,953.22, 223,495.78 and 90,331.40 is: 124,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,953.22 : 223,495.78 = 90,331.40 : x
  2. Step 2: Convert to fraction form
    161,953.22/223,495.78 = 90,331.40/x
  3. Step 3: Cross multiply
    161,953.22x = 223,495.78 × 90,331.40
  4. Step 4: Simplify right side
    161,953.22x = 20,188,686,701.49
  5. Step 5: Solve for x
    x = 20,188,686,701.49/161,953.22
  6. Step 6: Final answer
    x = 124,657.52

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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.