Home / 120,475.35-180,515.93-72,946.44

Finding the Fourth Proportional to 120,475.35, 180,515.93 and 72,946.44

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Solution

The fourth proportional to 120,475.35, 180,515.93 and 72,946.44 is: 109,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.35 : 180,515.93 = 72,946.44 : x
  2. Step 2: Convert to fraction form
    120,475.35/180,515.93 = 72,946.44/x
  3. Step 3: Cross multiply
    120,475.35x = 180,515.93 × 72,946.44
  4. Step 4: Simplify right side
    120,475.35x = 13,167,994,092.06
  5. Step 5: Solve for x
    x = 13,167,994,092.06/120,475.35
  6. Step 6: Final answer
    x = 109,300.32

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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.