Home / 142,075.22-196,085.00-91,145.45

Finding the Fourth Proportional to 142,075.22, 196,085.00 and 91,145.45

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Solution

The fourth proportional to 142,075.22, 196,085.00 and 91,145.45 is: 125,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,075.22 : 196,085.00 = 91,145.45 : x
  2. Step 2: Convert to fraction form
    142,075.22/196,085.00 = 91,145.45/x
  3. Step 3: Cross multiply
    142,075.22x = 196,085.00 × 91,145.45
  4. Step 4: Simplify right side
    142,075.22x = 17,872,256,281.33
  5. Step 5: Solve for x
    x = 17,872,256,281.33/142,075.22
  6. Step 6: Final answer
    x = 125,794.33

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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.