Home / 138,445.22-191,054.48-74,783.02

Finding the Fourth Proportional to 138,445.22, 191,054.48 and 74,783.02

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Solution

The fourth proportional to 138,445.22, 191,054.48 and 74,783.02 is: 103,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,445.22 : 191,054.48 = 74,783.02 : x
  2. Step 2: Convert to fraction form
    138,445.22/191,054.48 = 74,783.02/x
  3. Step 3: Cross multiply
    138,445.22x = 191,054.48 × 74,783.02
  4. Step 4: Simplify right side
    138,445.22x = 14,287,630,043.66
  5. Step 5: Solve for x
    x = 14,287,630,043.66/138,445.22
  6. Step 6: Final answer
    x = 103,200.60

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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.