Home / 145,977.16-201,449.92-85,583.56

Finding the Fourth Proportional to 145,977.16, 201,449.92 and 85,583.56

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Solution

The fourth proportional to 145,977.16, 201,449.92 and 85,583.56 is: 118,106.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,977.16 : 201,449.92 = 85,583.56 : x
  2. Step 2: Convert to fraction form
    145,977.16/201,449.92 = 85,583.56/x
  3. Step 3: Cross multiply
    145,977.16x = 201,449.92 × 85,583.56
  4. Step 4: Simplify right side
    145,977.16x = 17,240,801,315.32
  5. Step 5: Solve for x
    x = 17,240,801,315.32/145,977.16
  6. Step 6: Final answer
    x = 118,106.16

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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.