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Finding the Fourth Proportional to 119,908.40, 179,862.60 and 84,887.60

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Solution

The fourth proportional to 119,908.40, 179,862.60 and 84,887.60 is: 127,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,908.40 : 179,862.60 = 84,887.60 : x
  2. Step 2: Convert to fraction form
    119,908.40/179,862.60 = 84,887.60/x
  3. Step 3: Cross multiply
    119,908.40x = 179,862.60 × 84,887.60
  4. Step 4: Simplify right side
    119,908.40x = 15,268,104,443.76
  5. Step 5: Solve for x
    x = 15,268,104,443.76/119,908.40
  6. Step 6: Final answer
    x = 127,331.40

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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.