Home / 445,669.72-668,457.02-125,813.72

Finding the Fourth Proportional to 445,669.72, 668,457.02 and 125,813.72

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Solution

The fourth proportional to 445,669.72, 668,457.02 and 125,813.72 is: 188,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,669.72 : 668,457.02 = 125,813.72 : x
  2. Step 2: Convert to fraction form
    445,669.72/668,457.02 = 125,813.72/x
  3. Step 3: Cross multiply
    445,669.72x = 668,457.02 × 125,813.72
  4. Step 4: Simplify right side
    445,669.72x = 84,101,064,346.31
  5. Step 5: Solve for x
    x = 84,101,064,346.31/445,669.72
  6. Step 6: Final answer
    x = 188,707.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.