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Finding the Fourth Proportional to 122,897.68, 184,288.64 and 72,984.40

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Solution

The fourth proportional to 122,897.68, 184,288.64 and 72,984.40 is: 109,442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,897.68 : 184,288.64 = 72,984.40 : x
  2. Step 2: Convert to fraction form
    122,897.68/184,288.64 = 72,984.40/x
  3. Step 3: Cross multiply
    122,897.68x = 184,288.64 × 72,984.40
  4. Step 4: Simplify right side
    122,897.68x = 13,450,195,817.22
  5. Step 5: Solve for x
    x = 13,450,195,817.22/122,897.68
  6. Step 6: Final answer
    x = 109,442.23

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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.