Home / 132,887.91-183,381.93-72,458.67

Finding the Fourth Proportional to 132,887.91, 183,381.93 and 72,458.67

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Solution

The fourth proportional to 132,887.91, 183,381.93 and 72,458.67 is: 99,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,887.91 : 183,381.93 = 72,458.67 : x
  2. Step 2: Convert to fraction form
    132,887.91/183,381.93 = 72,458.67/x
  3. Step 3: Cross multiply
    132,887.91x = 183,381.93 × 72,458.67
  4. Step 4: Simplify right side
    132,887.91x = 13,287,610,749.83
  5. Step 5: Solve for x
    x = 13,287,610,749.83/132,887.91
  6. Step 6: Final answer
    x = 99,991.12

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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.