Home / 154,577.43-213,334.56-86,612.76

Finding the Fourth Proportional to 154,577.43, 213,334.56 and 86,612.76

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Solution

The fourth proportional to 154,577.43, 213,334.56 and 86,612.76 is: 119,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,577.43 : 213,334.56 = 86,612.76 : x
  2. Step 2: Convert to fraction form
    154,577.43/213,334.56 = 86,612.76/x
  3. Step 3: Cross multiply
    154,577.43x = 213,334.56 × 86,612.76
  4. Step 4: Simplify right side
    154,577.43x = 18,477,495,044.99
  5. Step 5: Solve for x
    x = 18,477,495,044.99/154,577.43
  6. Step 6: Final answer
    x = 119,535.53

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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.