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Finding the Fourth Proportional to 161,970.40, 242,955.60 and 51,162.40

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Solution

The fourth proportional to 161,970.40, 242,955.60 and 51,162.40 is: 76,743.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,970.40 : 242,955.60 = 51,162.40 : x
  2. Step 2: Convert to fraction form
    161,970.40/242,955.60 = 51,162.40/x
  3. Step 3: Cross multiply
    161,970.40x = 242,955.60 × 51,162.40
  4. Step 4: Simplify right side
    161,970.40x = 12,430,191,589.44
  5. Step 5: Solve for x
    x = 12,430,191,589.44/161,970.40
  6. Step 6: Final answer
    x = 76,743.60

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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.