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Finding the Fourth Proportional to 144,045.60, 215,938.80 and 94,149.60

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Solution

The fourth proportional to 144,045.60, 215,938.80 and 94,149.60 is: 141,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,045.60 : 215,938.80 = 94,149.60 : x
  2. Step 2: Convert to fraction form
    144,045.60/215,938.80 = 94,149.60/x
  3. Step 3: Cross multiply
    144,045.60x = 215,938.80 × 94,149.60
  4. Step 4: Simplify right side
    144,045.60x = 20,330,551,644.48
  5. Step 5: Solve for x
    x = 20,330,551,644.48/144,045.60
  6. Step 6: Final answer
    x = 141,139.69

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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.