Home / 161,890.04-223,409.08-90,273.08

Finding the Fourth Proportional to 161,890.04, 223,409.08 and 90,273.08

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Solution

The fourth proportional to 161,890.04, 223,409.08 and 90,273.08 is: 124,577.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,890.04 : 223,409.08 = 90,273.08 : x
  2. Step 2: Convert to fraction form
    161,890.04/223,409.08 = 90,273.08/x
  3. Step 3: Cross multiply
    161,890.04x = 223,409.08 × 90,273.08
  4. Step 4: Simplify right side
    161,890.04x = 20,167,825,751.57
  5. Step 5: Solve for x
    x = 20,167,825,751.57/161,890.04
  6. Step 6: Final answer
    x = 124,577.31

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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.