Home / 133,106.25-183,664.95-78,650.84

Finding the Fourth Proportional to 133,106.25, 183,664.95 and 78,650.84

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Solution

The fourth proportional to 133,106.25, 183,664.95 and 78,650.84 is: 108,525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,106.25 : 183,664.95 = 78,650.84 : x
  2. Step 2: Convert to fraction form
    133,106.25/183,664.95 = 78,650.84/x
  3. Step 3: Cross multiply
    133,106.25x = 183,664.95 × 78,650.84
  4. Step 4: Simplify right side
    133,106.25x = 14,445,402,596.06
  5. Step 5: Solve for x
    x = 14,445,402,596.06/133,106.25
  6. Step 6: Final answer
    x = 108,525.35

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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.