Home / 157,612.65-236,335.42-68,762.36

Finding the Fourth Proportional to 157,612.65, 236,335.42 and 68,762.36

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Solution

The fourth proportional to 157,612.65, 236,335.42 and 68,762.36 is: 103,107.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,612.65 : 236,335.42 = 68,762.36 : x
  2. Step 2: Convert to fraction form
    157,612.65/236,335.42 = 68,762.36/x
  3. Step 3: Cross multiply
    157,612.65x = 236,335.42 × 68,762.36
  4. Step 4: Simplify right side
    157,612.65x = 16,250,980,245.85
  5. Step 5: Solve for x
    x = 16,250,980,245.85/157,612.65
  6. Step 6: Final answer
    x = 103,107.08

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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.