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Finding the Fourth Proportional to 162,065.43, 223,661.52 and 90,459.45

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Solution

The fourth proportional to 162,065.43, 223,661.52 and 90,459.45 is: 124,840.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,065.43 : 223,661.52 = 90,459.45 : x
  2. Step 2: Convert to fraction form
    162,065.43/223,661.52 = 90,459.45/x
  3. Step 3: Cross multiply
    162,065.43x = 223,661.52 × 90,459.45
  4. Step 4: Simplify right side
    162,065.43x = 20,232,298,085.36
  5. Step 5: Solve for x
    x = 20,232,298,085.36/162,065.43
  6. Step 6: Final answer
    x = 124,840.31

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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.