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Finding the Fourth Proportional to 127,556.30, 191,326.35 and 43,316.30

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Solution

The fourth proportional to 127,556.30, 191,326.35 and 43,316.30 is: 64,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,556.30 : 191,326.35 = 43,316.30 : x
  2. Step 2: Convert to fraction form
    127,556.30/191,326.35 = 43,316.30/x
  3. Step 3: Cross multiply
    127,556.30x = 191,326.35 × 43,316.30
  4. Step 4: Simplify right side
    127,556.30x = 8,287,549,574.51
  5. Step 5: Solve for x
    x = 8,287,549,574.51/127,556.30
  6. Step 6: Final answer
    x = 64,971.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.