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Finding the Fourth Proportional to 153,963.60, 230,887.80 and 54,085.20

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Solution

The fourth proportional to 153,963.60, 230,887.80 and 54,085.20 is: 81,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,963.60 : 230,887.80 = 54,085.20 : x
  2. Step 2: Convert to fraction form
    153,963.60/230,887.80 = 54,085.20/x
  3. Step 3: Cross multiply
    153,963.60x = 230,887.80 × 54,085.20
  4. Step 4: Simplify right side
    153,963.60x = 12,487,612,840.56
  5. Step 5: Solve for x
    x = 12,487,612,840.56/153,963.60
  6. Step 6: Final answer
    x = 81,107.57

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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.