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Finding the Fourth Proportional to 117,483.71, 162,211.73 and 72,222.35

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Solution

The fourth proportional to 117,483.71, 162,211.73 and 72,222.35 is: 99,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,483.71 : 162,211.73 = 72,222.35 : x
  2. Step 2: Convert to fraction form
    117,483.71/162,211.73 = 72,222.35/x
  3. Step 3: Cross multiply
    117,483.71x = 162,211.73 × 72,222.35
  4. Step 4: Simplify right side
    117,483.71x = 11,715,311,166.00
  5. Step 5: Solve for x
    x = 11,715,311,166.00/117,483.71
  6. Step 6: Final answer
    x = 99,718.60

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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.