Home / 119,205.20-178,548.60-72,376.40

Finding the Fourth Proportional to 119,205.20, 178,548.60 and 72,376.40

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Solution

The fourth proportional to 119,205.20, 178,548.60 and 72,376.40 is: 108,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,205.20 : 178,548.60 = 72,376.40 : x
  2. Step 2: Convert to fraction form
    119,205.20/178,548.60 = 72,376.40/x
  3. Step 3: Cross multiply
    119,205.20x = 178,548.60 × 72,376.40
  4. Step 4: Simplify right side
    119,205.20x = 12,922,704,893.04
  5. Step 5: Solve for x
    x = 12,922,704,893.04/119,205.20
  6. Step 6: Final answer
    x = 108,407.22

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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.