Home / 108,740.10-163,054.80-42,199.32

Finding the Fourth Proportional to 108,740.10, 163,054.80 and 42,199.32

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Solution

The fourth proportional to 108,740.10, 163,054.80 and 42,199.32 is: 63,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,740.10 : 163,054.80 = 42,199.32 : x
  2. Step 2: Convert to fraction form
    108,740.10/163,054.80 = 42,199.32/x
  3. Step 3: Cross multiply
    108,740.10x = 163,054.80 × 42,199.32
  4. Step 4: Simplify right side
    108,740.10x = 6,880,801,682.74
  5. Step 5: Solve for x
    x = 6,880,801,682.74/108,740.10
  6. Step 6: Final answer
    x = 63,277.50

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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.