Home / 131,437.20-197,155.80-61,323.60

Finding the Fourth Proportional to 131,437.20, 197,155.80 and 61,323.60

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Solution

The fourth proportional to 131,437.20, 197,155.80 and 61,323.60 is: 91,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,437.20 : 197,155.80 = 61,323.60 : x
  2. Step 2: Convert to fraction form
    131,437.20/197,155.80 = 61,323.60/x
  3. Step 3: Cross multiply
    131,437.20x = 197,155.80 × 61,323.60
  4. Step 4: Simplify right side
    131,437.20x = 12,090,303,416.88
  5. Step 5: Solve for x
    x = 12,090,303,416.88/131,437.20
  6. Step 6: Final answer
    x = 91,985.40

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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.