Home / 162,205.74-243,360.60-77,971.98

Finding the Fourth Proportional to 162,205.74, 243,360.60 and 77,971.98

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Solution

The fourth proportional to 162,205.74, 243,360.60 and 77,971.98 is: 116,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,205.74 : 243,360.60 = 77,971.98 : x
  2. Step 2: Convert to fraction form
    162,205.74/243,360.60 = 77,971.98/x
  3. Step 3: Cross multiply
    162,205.74x = 243,360.60 × 77,971.98
  4. Step 4: Simplify right side
    162,205.74x = 18,975,307,835.99
  5. Step 5: Solve for x
    x = 18,975,307,835.99/162,205.74
  6. Step 6: Final answer
    x = 116,982.96

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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.