Home / 118,825.40-163,963.50-71,061.32

Finding the Fourth Proportional to 118,825.40, 163,963.50 and 71,061.32

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Solution

The fourth proportional to 118,825.40, 163,963.50 and 71,061.32 is: 98,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,825.40 : 163,963.50 = 71,061.32 : x
  2. Step 2: Convert to fraction form
    118,825.40/163,963.50 = 71,061.32/x
  3. Step 3: Cross multiply
    118,825.40x = 163,963.50 × 71,061.32
  4. Step 4: Simplify right side
    118,825.40x = 11,651,462,741.82
  5. Step 5: Solve for x
    x = 11,651,462,741.82/118,825.40
  6. Step 6: Final answer
    x = 98,055.32

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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.