Home / 145,975.16-201,447.16-85,581.56

Finding the Fourth Proportional to 145,975.16, 201,447.16 and 85,581.56

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Solution

The fourth proportional to 145,975.16, 201,447.16 and 85,581.56 is: 118,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,975.16 : 201,447.16 = 85,581.56 : x
  2. Step 2: Convert to fraction form
    145,975.16/201,447.16 = 85,581.56/x
  3. Step 3: Cross multiply
    145,975.16x = 201,447.16 × 85,581.56
  4. Step 4: Simplify right side
    145,975.16x = 17,240,162,210.37
  5. Step 5: Solve for x
    x = 17,240,162,210.37/145,975.16
  6. Step 6: Final answer
    x = 118,103.40

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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.