Home / 158,075.56-218,141.20-86,455.36

Finding the Fourth Proportional to 158,075.56, 218,141.20 and 86,455.36

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Solution

The fourth proportional to 158,075.56, 218,141.20 and 86,455.36 is: 119,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,075.56 : 218,141.20 = 86,455.36 : x
  2. Step 2: Convert to fraction form
    158,075.56/218,141.20 = 86,455.36/x
  3. Step 3: Cross multiply
    158,075.56x = 218,141.20 × 86,455.36
  4. Step 4: Simplify right side
    158,075.56x = 18,859,475,976.83
  5. Step 5: Solve for x
    x = 18,859,475,976.83/158,075.56
  6. Step 6: Final answer
    x = 119,306.72

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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.