Home / 161,750.14-223,212.16-90,128.62

Finding the Fourth Proportional to 161,750.14, 223,212.16 and 90,128.62

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Solution

The fourth proportional to 161,750.14, 223,212.16 and 90,128.62 is: 124,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,750.14 : 223,212.16 = 90,128.62 : x
  2. Step 2: Convert to fraction form
    161,750.14/223,212.16 = 90,128.62/x
  3. Step 3: Cross multiply
    161,750.14x = 223,212.16 × 90,128.62
  4. Step 4: Simplify right side
    161,750.14x = 20,117,803,948.02
  5. Step 5: Solve for x
    x = 20,117,803,948.02/161,750.14
  6. Step 6: Final answer
    x = 124,375.81

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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.