Home / 108,905.56-163,281.52-42,290.20

Finding the Fourth Proportional to 108,905.56, 163,281.52 and 42,290.20

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Solution

The fourth proportional to 108,905.56, 163,281.52 and 42,290.20 is: 63,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,905.56 : 163,281.52 = 42,290.20 : x
  2. Step 2: Convert to fraction form
    108,905.56/163,281.52 = 42,290.20/x
  3. Step 3: Cross multiply
    108,905.56x = 163,281.52 × 42,290.20
  4. Step 4: Simplify right side
    108,905.56x = 6,905,208,137.10
  5. Step 5: Solve for x
    x = 6,905,208,137.10/108,905.56
  6. Step 6: Final answer
    x = 63,405.47

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1.5x scale

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.