Home / 118,120.16-163,045.32-70,388.48

Finding the Fourth Proportional to 118,120.16, 163,045.32 and 70,388.48

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Solution

The fourth proportional to 118,120.16, 163,045.32 and 70,388.48 is: 97,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,120.16 : 163,045.32 = 70,388.48 : x
  2. Step 2: Convert to fraction form
    118,120.16/163,045.32 = 70,388.48/x
  3. Step 3: Cross multiply
    118,120.16x = 163,045.32 × 70,388.48
  4. Step 4: Simplify right side
    118,120.16x = 11,476,512,245.91
  5. Step 5: Solve for x
    x = 11,476,512,245.91/118,120.16
  6. Step 6: Final answer
    x = 97,159.64

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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.