Home / 142,354.67-196,479.47-118,458.05

Finding the Fourth Proportional to 142,354.67, 196,479.47 and 118,458.05

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Solution

The fourth proportional to 142,354.67, 196,479.47 and 118,458.05 is: 163,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,354.67 : 196,479.47 = 118,458.05 : x
  2. Step 2: Convert to fraction form
    142,354.67/196,479.47 = 118,458.05/x
  3. Step 3: Cross multiply
    142,354.67x = 196,479.47 × 118,458.05
  4. Step 4: Simplify right side
    142,354.67x = 23,274,574,194.98
  5. Step 5: Solve for x
    x = 23,274,574,194.98/142,354.67
  6. Step 6: Final answer
    x = 163,497.10

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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.