Home / 129,167,762.08-178,294,705.72-76,973,164.96

Finding the Fourth Proportional to 129,167,762.08, 178,294,705.72 and 76,973,164.96

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Solution

The fourth proportional to 129,167,762.08, 178,294,705.72 and 76,973,164.96 is: 106,248,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,167,762.08 : 178,294,705.72 = 76,973,164.96 : x
  2. Step 2: Convert to fraction form
    129,167,762.08/178,294,705.72 = 76,973,164.96/x
  3. Step 3: Cross multiply
    129,167,762.08x = 178,294,705.72 × 76,973,164.96
  4. Step 4: Simplify right side
    129,167,762.08x = 13,723,907,794,880,214
  5. Step 5: Solve for x
    x = 13,723,907,794,880,214/129,167,762.08
  6. Step 6: Final answer
    x = 106,248,707.68

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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.