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Finding the Fourth Proportional to 144,004.80, 216,007.20 and 96,765.60

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Solution

The fourth proportional to 144,004.80, 216,007.20 and 96,765.60 is: 145,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,004.80 : 216,007.20 = 96,765.60 : x
  2. Step 2: Convert to fraction form
    144,004.80/216,007.20 = 96,765.60/x
  3. Step 3: Cross multiply
    144,004.80x = 216,007.20 × 96,765.60
  4. Step 4: Simplify right side
    144,004.80x = 20,902,066,312.32
  5. Step 5: Solve for x
    x = 20,902,066,312.32/144,004.80
  6. Step 6: Final answer
    x = 145,148.40

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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.