Home / 104,740.32-157,120.20-42,415.68

Finding the Fourth Proportional to 104,740.32, 157,120.20 and 42,415.68

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Solution

The fourth proportional to 104,740.32, 157,120.20 and 42,415.68 is: 63,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,740.32 : 157,120.20 = 42,415.68 : x
  2. Step 2: Convert to fraction form
    104,740.32/157,120.20 = 42,415.68/x
  3. Step 3: Cross multiply
    104,740.32x = 157,120.20 × 42,415.68
  4. Step 4: Simplify right side
    104,740.32x = 6,664,360,124.74
  5. Step 5: Solve for x
    x = 6,664,360,124.74/104,740.32
  6. Step 6: Final answer
    x = 63,627.46

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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.