Home / 148,106.88-204,392.64-81,045.12

Finding the Fourth Proportional to 148,106.88, 204,392.64 and 81,045.12

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Solution

The fourth proportional to 148,106.88, 204,392.64 and 81,045.12 is: 111,845.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,106.88 : 204,392.64 = 81,045.12 : x
  2. Step 2: Convert to fraction form
    148,106.88/204,392.64 = 81,045.12/x
  3. Step 3: Cross multiply
    148,106.88x = 204,392.64 × 81,045.12
  4. Step 4: Simplify right side
    148,106.88x = 16,565,026,035.92
  5. Step 5: Solve for x
    x = 16,565,026,035.92/148,106.88
  6. Step 6: Final answer
    x = 111,845.08

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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.