Home / 105,897.15-146,128.55-58,149.45

Finding the Fourth Proportional to 105,897.15, 146,128.55 and 58,149.45

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Solution

The fourth proportional to 105,897.15, 146,128.55 and 58,149.45 is: 80,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,897.15 : 146,128.55 = 58,149.45 : x
  2. Step 2: Convert to fraction form
    105,897.15/146,128.55 = 58,149.45/x
  3. Step 3: Cross multiply
    105,897.15x = 146,128.55 × 58,149.45
  4. Step 4: Simplify right side
    105,897.15x = 8,497,294,521.05
  5. Step 5: Solve for x
    x = 8,497,294,521.05/105,897.15
  6. Step 6: Final answer
    x = 80,241.01

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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.