Home / 132,973.70-183,503.31-72,543.91

Finding the Fourth Proportional to 132,973.70, 183,503.31 and 72,543.91

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Solution

The fourth proportional to 132,973.70, 183,503.31 and 72,543.91 is: 100,110.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,973.70 : 183,503.31 = 72,543.91 : x
  2. Step 2: Convert to fraction form
    132,973.70/183,503.31 = 72,543.91/x
  3. Step 3: Cross multiply
    132,973.70x = 183,503.31 × 72,543.91
  4. Step 4: Simplify right side
    132,973.70x = 13,312,047,653.68
  5. Step 5: Solve for x
    x = 13,312,047,653.68/132,973.70
  6. Step 6: Final answer
    x = 100,110.38

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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.