Home / 98,631.66-136,113.14-56,189.28

Finding the Fourth Proportional to 98,631.66, 136,113.14 and 56,189.28

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Solution

The fourth proportional to 98,631.66, 136,113.14 and 56,189.28 is: 77,542.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,631.66 : 136,113.14 = 56,189.28 : x
  2. Step 2: Convert to fraction form
    98,631.66/136,113.14 = 56,189.28/x
  3. Step 3: Cross multiply
    98,631.66x = 136,113.14 × 56,189.28
  4. Step 4: Simplify right side
    98,631.66x = 7,648,099,335.14
  5. Step 5: Solve for x
    x = 7,648,099,335.14/98,631.66
  6. Step 6: Final answer
    x = 77,542.03

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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.