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Finding the Fourth Proportional to 170,462.68, 235,152 and 130,106.40

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Solution

The fourth proportional to 170,462.68, 235,152 and 130,106.40 is: 179,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,462.68 : 235,152 = 130,106.40 : x
  2. Step 2: Convert to fraction form
    170,462.68/235,152 = 130,106.40/x
  3. Step 3: Cross multiply
    170,462.68x = 235,152 × 130,106.40
  4. Step 4: Simplify right side
    170,462.68x = 30,594,780,172.80
  5. Step 5: Solve for x
    x = 30,594,780,172.80/170,462.68
  6. Step 6: Final answer
    x = 179,480.81

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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.