Home / 144,554.20-216,831.30-129,828.40

Finding the Fourth Proportional to 144,554.20, 216,831.30 and 129,828.40

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Solution

The fourth proportional to 144,554.20, 216,831.30 and 129,828.40 is: 194,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,554.20 : 216,831.30 = 129,828.40 : x
  2. Step 2: Convert to fraction form
    144,554.20/216,831.30 = 129,828.40/x
  3. Step 3: Cross multiply
    144,554.20x = 216,831.30 × 129,828.40
  4. Step 4: Simplify right side
    144,554.20x = 28,150,860,748.92
  5. Step 5: Solve for x
    x = 28,150,860,748.92/144,554.20
  6. Step 6: Final answer
    x = 194,742.60

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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.