Home / 134,209.88-185,214.40-76,859.45

Finding the Fourth Proportional to 134,209.88, 185,214.40 and 76,859.45

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Solution

The fourth proportional to 134,209.88, 185,214.40 and 76,859.45 is: 106,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,209.88 : 185,214.40 = 76,859.45 : x
  2. Step 2: Convert to fraction form
    134,209.88/185,214.40 = 76,859.45/x
  3. Step 3: Cross multiply
    134,209.88x = 185,214.40 × 76,859.45
  4. Step 4: Simplify right side
    134,209.88x = 14,235,476,492.41
  5. Step 5: Solve for x
    x = 14,235,476,492.41/134,209.88
  6. Step 6: Final answer
    x = 106,068.77

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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.