Home / 118,838.24-164,071.34-76,470.40

Finding the Fourth Proportional to 118,838.24, 164,071.34 and 76,470.40

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Solution

The fourth proportional to 118,838.24, 164,071.34 and 76,470.40 is: 105,577.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,838.24 : 164,071.34 = 76,470.40 : x
  2. Step 2: Convert to fraction form
    118,838.24/164,071.34 = 76,470.40/x
  3. Step 3: Cross multiply
    118,838.24x = 164,071.34 × 76,470.40
  4. Step 4: Simplify right side
    118,838.24x = 12,546,600,998.34
  5. Step 5: Solve for x
    x = 12,546,600,998.34/118,838.24
  6. Step 6: Final answer
    x = 105,577.14

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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.