Home / 98,749.23-136,276.34-56,308.47

Finding the Fourth Proportional to 98,749.23, 136,276.34 and 56,308.47

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Solution

The fourth proportional to 98,749.23, 136,276.34 and 56,308.47 is: 77,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,749.23 : 136,276.34 = 56,308.47 : x
  2. Step 2: Convert to fraction form
    98,749.23/136,276.34 = 56,308.47/x
  3. Step 3: Cross multiply
    98,749.23x = 136,276.34 × 56,308.47
  4. Step 4: Simplify right side
    98,749.23x = 7,673,511,921.06
  5. Step 5: Solve for x
    x = 7,673,511,921.06/98,749.23
  6. Step 6: Final answer
    x = 77,707.06

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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.