Home / 156,731.40-235,097.10-133,111.80

Finding the Fourth Proportional to 156,731.40, 235,097.10 and 133,111.80

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Solution

The fourth proportional to 156,731.40, 235,097.10 and 133,111.80 is: 199,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.40 : 235,097.10 = 133,111.80 : x
  2. Step 2: Convert to fraction form
    156,731.40/235,097.10 = 133,111.80/x
  3. Step 3: Cross multiply
    156,731.40x = 235,097.10 × 133,111.80
  4. Step 4: Simplify right side
    156,731.40x = 31,294,198,155.78
  5. Step 5: Solve for x
    x = 31,294,198,155.78/156,731.40
  6. Step 6: Final answer
    x = 199,667.70

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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.