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Finding the Fourth Proportional to 132,956.34, 183,483.21 and 72,528

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Solution

The fourth proportional to 132,956.34, 183,483.21 and 72,528 is: 100,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,956.34 : 183,483.21 = 72,528 : x
  2. Step 2: Convert to fraction form
    132,956.34/183,483.21 = 72,528/x
  3. Step 3: Cross multiply
    132,956.34x = 183,483.21 × 72,528
  4. Step 4: Simplify right side
    132,956.34x = 13,307,670,254.88
  5. Step 5: Solve for x
    x = 13,307,670,254.88/132,956.34
  6. Step 6: Final answer
    x = 100,090.53

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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.