Home / 132,721.07-183,155.33-72,291.53

Finding the Fourth Proportional to 132,721.07, 183,155.33 and 72,291.53

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Solution

The fourth proportional to 132,721.07, 183,155.33 and 72,291.53 is: 99,762.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,721.07 : 183,155.33 = 72,291.53 : x
  2. Step 2: Convert to fraction form
    132,721.07/183,155.33 = 72,291.53/x
  3. Step 3: Cross multiply
    132,721.07x = 183,155.33 × 72,291.53
  4. Step 4: Simplify right side
    132,721.07x = 13,240,577,756.12
  5. Step 5: Solve for x
    x = 13,240,577,756.12/132,721.07
  6. Step 6: Final answer
    x = 99,762.44

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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.