Home / 134,512.40-185,619.98-77,148.76

Finding the Fourth Proportional to 134,512.40, 185,619.98 and 77,148.76

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Solution

The fourth proportional to 134,512.40, 185,619.98 and 77,148.76 is: 106,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,512.40 : 185,619.98 = 77,148.76 : x
  2. Step 2: Convert to fraction form
    134,512.40/185,619.98 = 77,148.76/x
  3. Step 3: Cross multiply
    134,512.40x = 185,619.98 × 77,148.76
  4. Step 4: Simplify right side
    134,512.40x = 14,320,351,288.22
  5. Step 5: Solve for x
    x = 14,320,351,288.22/134,512.40
  6. Step 6: Final answer
    x = 106,461.20

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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.