Home / 142,075.24-213,062.70-47,279.80

Finding the Fourth Proportional to 142,075.24, 213,062.70 and 47,279.80

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Solution

The fourth proportional to 142,075.24, 213,062.70 and 47,279.80 is: 70,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,075.24 : 213,062.70 = 47,279.80 : x
  2. Step 2: Convert to fraction form
    142,075.24/213,062.70 = 47,279.80/x
  3. Step 3: Cross multiply
    142,075.24x = 213,062.70 × 47,279.80
  4. Step 4: Simplify right side
    142,075.24x = 10,073,561,843.46
  5. Step 5: Solve for x
    x = 10,073,561,843.46/142,075.24
  6. Step 6: Final answer
    x = 70,903.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.