Home / 142,601.74-196,790.46-78,075.16

Finding the Fourth Proportional to 142,601.74, 196,790.46 and 78,075.16

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Solution

The fourth proportional to 142,601.74, 196,790.46 and 78,075.16 is: 107,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,601.74 : 196,790.46 = 78,075.16 : x
  2. Step 2: Convert to fraction form
    142,601.74/196,790.46 = 78,075.16/x
  3. Step 3: Cross multiply
    142,601.74x = 196,790.46 × 78,075.16
  4. Step 4: Simplify right side
    142,601.74x = 15,364,446,596.98
  5. Step 5: Solve for x
    x = 15,364,446,596.98/142,601.74
  6. Step 6: Final answer
    x = 107,743.75

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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.