Home / 161,210.07-222,400.80-100,675.67

Finding the Fourth Proportional to 161,210.07, 222,400.80 and 100,675.67

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Solution

The fourth proportional to 161,210.07, 222,400.80 and 100,675.67 is: 138,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,210.07 : 222,400.80 = 100,675.67 : x
  2. Step 2: Convert to fraction form
    161,210.07/222,400.80 = 100,675.67/x
  3. Step 3: Cross multiply
    161,210.07x = 222,400.80 × 100,675.67
  4. Step 4: Simplify right side
    161,210.07x = 22,390,348,436.53
  5. Step 5: Solve for x
    x = 22,390,348,436.53/161,210.07
  6. Step 6: Final answer
    x = 138,889.27

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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.