Home / 134,749.50-185,962.80-77,406.76

Finding the Fourth Proportional to 134,749.50, 185,962.80 and 77,406.76

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Solution

The fourth proportional to 134,749.50, 185,962.80 and 77,406.76 is: 106,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,749.50 : 185,962.80 = 77,406.76 : x
  2. Step 2: Convert to fraction form
    134,749.50/185,962.80 = 77,406.76/x
  3. Step 3: Cross multiply
    134,749.50x = 185,962.80 × 77,406.76
  4. Step 4: Simplify right side
    134,749.50x = 14,394,777,828.53
  5. Step 5: Solve for x
    x = 14,394,777,828.53/134,749.50
  6. Step 6: Final answer
    x = 106,826.21

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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.