Home / 144,527.55-216,661.73-128,781.15

Finding the Fourth Proportional to 144,527.55, 216,661.73 and 128,781.15

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Solution

The fourth proportional to 144,527.55, 216,661.73 and 128,781.15 is: 193,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,527.55 : 216,661.73 = 128,781.15 : x
  2. Step 2: Convert to fraction form
    144,527.55/216,661.73 = 128,781.15/x
  3. Step 3: Cross multiply
    144,527.55x = 216,661.73 × 128,781.15
  4. Step 4: Simplify right side
    144,527.55x = 27,901,946,106.48
  5. Step 5: Solve for x
    x = 27,901,946,106.48/144,527.55
  6. Step 6: Final answer
    x = 193,056.25

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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.