Home / 158,810.22-219,075.44-128,629.62

Finding the Fourth Proportional to 158,810.22, 219,075.44 and 128,629.62

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Solution

The fourth proportional to 158,810.22, 219,075.44 and 128,629.62 is: 177,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,810.22 : 219,075.44 = 128,629.62 : x
  2. Step 2: Convert to fraction form
    158,810.22/219,075.44 = 128,629.62/x
  3. Step 3: Cross multiply
    158,810.22x = 219,075.44 × 128,629.62
  4. Step 4: Simplify right side
    158,810.22x = 28,179,589,955.38
  5. Step 5: Solve for x
    x = 28,179,589,955.38/158,810.22
  6. Step 6: Final answer
    x = 177,441.92

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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.