Home / 98,710.79-136,220.46-53,388.81

Finding the Fourth Proportional to 98,710.79, 136,220.46 and 53,388.81

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Solution

The fourth proportional to 98,710.79, 136,220.46 and 53,388.81 is: 73,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,710.79 : 136,220.46 = 53,388.81 : x
  2. Step 2: Convert to fraction form
    98,710.79/136,220.46 = 53,388.81/x
  3. Step 3: Cross multiply
    98,710.79x = 136,220.46 × 53,388.81
  4. Step 4: Simplify right side
    98,710.79x = 7,272,648,257.05
  5. Step 5: Solve for x
    x = 7,272,648,257.05/98,710.79
  6. Step 6: Final answer
    x = 73,676.33

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1.5x scale

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.