Home / 115,434.80-173,152.20-102,215.60

Finding the Fourth Proportional to 115,434.80, 173,152.20 and 102,215.60

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Solution

The fourth proportional to 115,434.80, 173,152.20 and 102,215.60 is: 153,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,434.80 : 173,152.20 = 102,215.60 : x
  2. Step 2: Convert to fraction form
    115,434.80/173,152.20 = 102,215.60/x
  3. Step 3: Cross multiply
    115,434.80x = 173,152.20 × 102,215.60
  4. Step 4: Simplify right side
    115,434.80x = 17,698,856,014.32
  5. Step 5: Solve for x
    x = 17,698,856,014.32/115,434.80
  6. Step 6: Final answer
    x = 153,323.40

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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.