Home / 161,985.92-223,539.93-90,365.90

Finding the Fourth Proportional to 161,985.92, 223,539.93 and 90,365.90

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Solution

The fourth proportional to 161,985.92, 223,539.93 and 90,365.90 is: 124,704.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,985.92 : 223,539.93 = 90,365.90 : x
  2. Step 2: Convert to fraction form
    161,985.92/223,539.93 = 90,365.90/x
  3. Step 3: Cross multiply
    161,985.92x = 223,539.93 × 90,365.90
  4. Step 4: Simplify right side
    161,985.92x = 20,200,385,842.69
  5. Step 5: Solve for x
    x = 20,200,385,842.69/161,985.92
  6. Step 6: Final answer
    x = 124,704.58

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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.