Home / 161,888.36-223,412.85-90,268.39

Finding the Fourth Proportional to 161,888.36, 223,412.85 and 90,268.39

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Solution

The fourth proportional to 161,888.36, 223,412.85 and 90,268.39 is: 124,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,888.36 : 223,412.85 = 90,268.39 : x
  2. Step 2: Convert to fraction form
    161,888.36/223,412.85 = 90,268.39/x
  3. Step 3: Cross multiply
    161,888.36x = 223,412.85 × 90,268.39
  4. Step 4: Simplify right side
    161,888.36x = 20,167,118,554.08
  5. Step 5: Solve for x
    x = 20,167,118,554.08/161,888.36
  6. Step 6: Final answer
    x = 124,574.24

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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.