Home / 132,969.36-183,495.84-76,381.20

Finding the Fourth Proportional to 132,969.36, 183,495.84 and 76,381.20

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Solution

The fourth proportional to 132,969.36, 183,495.84 and 76,381.20 is: 105,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,969.36 : 183,495.84 = 76,381.20 : x
  2. Step 2: Convert to fraction form
    132,969.36/183,495.84 = 76,381.20/x
  3. Step 3: Cross multiply
    132,969.36x = 183,495.84 × 76,381.20
  4. Step 4: Simplify right side
    132,969.36x = 14,015,632,454.21
  5. Step 5: Solve for x
    x = 14,015,632,454.21/132,969.36
  6. Step 6: Final answer
    x = 105,404.98

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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.