Home / 132,720.37-183,152.54-72,290.81

Finding the Fourth Proportional to 132,720.37, 183,152.54 and 72,290.81

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Solution

The fourth proportional to 132,720.37, 183,152.54 and 72,290.81 is: 99,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,720.37 : 183,152.54 = 72,290.81 : x
  2. Step 2: Convert to fraction form
    132,720.37/183,152.54 = 72,290.81/x
  3. Step 3: Cross multiply
    132,720.37x = 183,152.54 × 72,290.81
  4. Step 4: Simplify right side
    132,720.37x = 13,240,246,108.77
  5. Step 5: Solve for x
    x = 13,240,246,108.77/132,720.37
  6. Step 6: Final answer
    x = 99,760.47

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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.