Home / 170,129.17-255,251-75,346.21

Finding the Fourth Proportional to 170,129.17, 255,251 and 75,346.21

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Solution

The fourth proportional to 170,129.17, 255,251 and 75,346.21 is: 113,044.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,129.17 : 255,251 = 75,346.21 : x
  2. Step 2: Convert to fraction form
    170,129.17/255,251 = 75,346.21/x
  3. Step 3: Cross multiply
    170,129.17x = 255,251 × 75,346.21
  4. Step 4: Simplify right side
    170,129.17x = 19,232,195,448.71
  5. Step 5: Solve for x
    x = 19,232,195,448.71/170,129.17
  6. Step 6: Final answer
    x = 113,044.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.