Home / 158,631.48-218,912.76-87,010.92

Finding the Fourth Proportional to 158,631.48, 218,912.76 and 87,010.92

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Solution

The fourth proportional to 158,631.48, 218,912.76 and 87,010.92 is: 120,075.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,631.48 : 218,912.76 = 87,010.92 : x
  2. Step 2: Convert to fraction form
    158,631.48/218,912.76 = 87,010.92/x
  3. Step 3: Cross multiply
    158,631.48x = 218,912.76 × 87,010.92
  4. Step 4: Simplify right side
    158,631.48x = 19,047,800,647.34
  5. Step 5: Solve for x
    x = 19,047,800,647.34/158,631.48
  6. Step 6: Final answer
    x = 120,075.79

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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.