Home / 104,964.80-157,466.40-42,641.60

Finding the Fourth Proportional to 104,964.80, 157,466.40 and 42,641.60

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Solution

The fourth proportional to 104,964.80, 157,466.40 and 42,641.60 is: 63,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,964.80 : 157,466.40 = 42,641.60 : x
  2. Step 2: Convert to fraction form
    104,964.80/157,466.40 = 42,641.60/x
  3. Step 3: Cross multiply
    104,964.80x = 157,466.40 × 42,641.60
  4. Step 4: Simplify right side
    104,964.80x = 6,714,619,242.24
  5. Step 5: Solve for x
    x = 6,714,619,242.24/104,964.80
  6. Step 6: Final answer
    x = 63,970.20

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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.