Home / 142,355.42-196,480.51-118,458.80

Finding the Fourth Proportional to 142,355.42, 196,480.51 and 118,458.80

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Solution

The fourth proportional to 142,355.42, 196,480.51 and 118,458.80 is: 163,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,355.42 : 196,480.51 = 118,458.80 : x
  2. Step 2: Convert to fraction form
    142,355.42/196,480.51 = 118,458.80/x
  3. Step 3: Cross multiply
    142,355.42x = 196,480.51 × 118,458.80
  4. Step 4: Simplify right side
    142,355.42x = 23,274,844,159.44
  5. Step 5: Solve for x
    x = 23,274,844,159.44/142,355.42
  6. Step 6: Final answer
    x = 163,498.13

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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.