Home / 144,154.22-198,880.11-90,419.63

Finding the Fourth Proportional to 144,154.22, 198,880.11 and 90,419.63

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Solution

The fourth proportional to 144,154.22, 198,880.11 and 90,419.63 is: 124,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,154.22 : 198,880.11 = 90,419.63 : x
  2. Step 2: Convert to fraction form
    144,154.22/198,880.11 = 90,419.63/x
  3. Step 3: Cross multiply
    144,154.22x = 198,880.11 × 90,419.63
  4. Step 4: Simplify right side
    144,154.22x = 17,982,664,966.16
  5. Step 5: Solve for x
    x = 17,982,664,966.16/144,154.22
  6. Step 6: Final answer
    x = 124,746.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.