Home / 255,827.77-383,742.56-78,334.04

Finding the Fourth Proportional to 255,827.77, 383,742.56 and 78,334.04

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Solution

The fourth proportional to 255,827.77, 383,742.56 and 78,334.04 is: 117,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,827.77 : 383,742.56 = 78,334.04 : x
  2. Step 2: Convert to fraction form
    255,827.77/383,742.56 = 78,334.04/x
  3. Step 3: Cross multiply
    255,827.77x = 383,742.56 × 78,334.04
  4. Step 4: Simplify right side
    255,827.77x = 30,060,104,041.38
  5. Step 5: Solve for x
    x = 30,060,104,041.38/255,827.77
  6. Step 6: Final answer
    x = 117,501.33

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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.