Home / 105,787,420.98-145,990,293.78-58,745,281.86

Finding the Fourth Proportional to 105,787,420.98, 145,990,293.78 and 58,745,281.86

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Solution

The fourth proportional to 105,787,420.98, 145,990,293.78 and 58,745,281.86 is: 81,070,517.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,787,420.98 : 145,990,293.78 = 58,745,281.86 : x
  2. Step 2: Convert to fraction form
    105,787,420.98/145,990,293.78 = 58,745,281.86/x
  3. Step 3: Cross multiply
    105,787,420.98x = 145,990,293.78 × 58,745,281.86
  4. Step 4: Simplify right side
    105,787,420.98x = 8,576,240,956,930,305
  5. Step 5: Solve for x
    x = 8,576,240,956,930,305/105,787,420.98
  6. Step 6: Final answer
    x = 81,070,517.43

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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.