Home / 131,427.60-197,155.80-127,280.40

Finding the Fourth Proportional to 131,427.60, 197,155.80 and 127,280.40

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Solution

The fourth proportional to 131,427.60, 197,155.80 and 127,280.40 is: 190,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.60 : 197,155.80 = 127,280.40 : x
  2. Step 2: Convert to fraction form
    131,427.60/197,155.80 = 127,280.40/x
  3. Step 3: Cross multiply
    131,427.60x = 197,155.80 × 127,280.40
  4. Step 4: Simplify right side
    131,427.60x = 25,094,069,086.32
  5. Step 5: Solve for x
    x = 25,094,069,086.32/131,427.60
  6. Step 6: Final answer
    x = 190,934.55

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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.