Home / 132,840.95-183,317.60-72,409.28

Finding the Fourth Proportional to 132,840.95, 183,317.60 and 72,409.28

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Solution

The fourth proportional to 132,840.95, 183,317.60 and 72,409.28 is: 99,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,840.95 : 183,317.60 = 72,409.28 : x
  2. Step 2: Convert to fraction form
    132,840.95/183,317.60 = 72,409.28/x
  3. Step 3: Cross multiply
    132,840.95x = 183,317.60 × 72,409.28
  4. Step 4: Simplify right side
    132,840.95x = 13,273,895,065.28
  5. Step 5: Solve for x
    x = 13,273,895,065.28/132,840.95
  6. Step 6: Final answer
    x = 99,923.22

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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.