Home / 162,738.60-244,109.48-78,479.16

Finding the Fourth Proportional to 162,738.60, 244,109.48 and 78,479.16

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Solution

The fourth proportional to 162,738.60, 244,109.48 and 78,479.16 is: 117,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,738.60 : 244,109.48 = 78,479.16 : x
  2. Step 2: Convert to fraction form
    162,738.60/244,109.48 = 78,479.16/x
  3. Step 3: Cross multiply
    162,738.60x = 244,109.48 × 78,479.16
  4. Step 4: Simplify right side
    162,738.60x = 19,157,506,938.44
  5. Step 5: Solve for x
    x = 19,157,506,938.44/162,738.60
  6. Step 6: Final answer
    x = 117,719.50

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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.