Home / 163,959.12-245,890.08-70,443

Finding the Fourth Proportional to 163,959.12, 245,890.08 and 70,443

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Solution

The fourth proportional to 163,959.12, 245,890.08 and 70,443 is: 105,643.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,959.12 : 245,890.08 = 70,443 : x
  2. Step 2: Convert to fraction form
    163,959.12/245,890.08 = 70,443/x
  3. Step 3: Cross multiply
    163,959.12x = 245,890.08 × 70,443
  4. Step 4: Simplify right side
    163,959.12x = 17,321,234,905.44
  5. Step 5: Solve for x
    x = 17,321,234,905.44/163,959.12
  6. Step 6: Final answer
    x = 105,643.62

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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.