Home / 136,946.24-188,967.02-76,509.38

Finding the Fourth Proportional to 136,946.24, 188,967.02 and 76,509.38

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Solution

The fourth proportional to 136,946.24, 188,967.02 and 76,509.38 is: 105,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,946.24 : 188,967.02 = 76,509.38 : x
  2. Step 2: Convert to fraction form
    136,946.24/188,967.02 = 76,509.38/x
  3. Step 3: Cross multiply
    136,946.24x = 188,967.02 × 76,509.38
  4. Step 4: Simplify right side
    136,946.24x = 14,457,749,540.65
  5. Step 5: Solve for x
    x = 14,457,749,540.65/136,946.24
  6. Step 6: Final answer
    x = 105,572.45

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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.