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Finding the Fourth Proportional to 144,279.60, 199,109.28 and 79,748.88

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Solution

The fourth proportional to 144,279.60, 199,109.28 and 79,748.88 is: 110,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,279.60 : 199,109.28 = 79,748.88 : x
  2. Step 2: Convert to fraction form
    144,279.60/199,109.28 = 79,748.88/x
  3. Step 3: Cross multiply
    144,279.60x = 199,109.28 × 79,748.88
  4. Step 4: Simplify right side
    144,279.60x = 15,878,742,077.61
  5. Step 5: Solve for x
    x = 15,878,742,077.61/144,279.60
  6. Step 6: Final answer
    x = 110,055.35

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1.5x scale

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.