Home / 98,669.21-136,161.47-53,957.21

Finding the Fourth Proportional to 98,669.21, 136,161.47 and 53,957.21

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Solution

The fourth proportional to 98,669.21, 136,161.47 and 53,957.21 is: 74,459.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,669.21 : 136,161.47 = 53,957.21 : x
  2. Step 2: Convert to fraction form
    98,669.21/136,161.47 = 53,957.21/x
  3. Step 3: Cross multiply
    98,669.21x = 136,161.47 × 53,957.21
  4. Step 4: Simplify right side
    98,669.21x = 7,346,892,484.78
  5. Step 5: Solve for x
    x = 7,346,892,484.78/98,669.21
  6. Step 6: Final answer
    x = 74,459.83

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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.