Home / 162,100.20-243,044.70-145,511.40

Finding the Fourth Proportional to 162,100.20, 243,044.70 and 145,511.40

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Solution

The fourth proportional to 162,100.20, 243,044.70 and 145,511.40 is: 218,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,100.20 : 243,044.70 = 145,511.40 : x
  2. Step 2: Convert to fraction form
    162,100.20/243,044.70 = 145,511.40/x
  3. Step 3: Cross multiply
    162,100.20x = 243,044.70 × 145,511.40
  4. Step 4: Simplify right side
    162,100.20x = 35,365,774,559.58
  5. Step 5: Solve for x
    x = 35,365,774,559.58/162,100.20
  6. Step 6: Final answer
    x = 218,172.31

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1.5x scale

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.