Home / 105,345.64-145,377.12-60,021.64

Finding the Fourth Proportional to 105,345.64, 145,377.12 and 60,021.64

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Solution

The fourth proportional to 105,345.64, 145,377.12 and 60,021.64 is: 82,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345.64 : 145,377.12 = 60,021.64 : x
  2. Step 2: Convert to fraction form
    105,345.64/145,377.12 = 60,021.64/x
  3. Step 3: Cross multiply
    105,345.64x = 145,377.12 × 60,021.64
  4. Step 4: Simplify right side
    105,345.64x = 8,725,773,160.88
  5. Step 5: Solve for x
    x = 8,725,773,160.88/105,345.64
  6. Step 6: Final answer
    x = 82,829.94

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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.