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Finding the Fourth Proportional to 142,125.84, 212,955.47 and 48,580.56

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Solution

The fourth proportional to 142,125.84, 212,955.47 and 48,580.56 is: 72,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,125.84 : 212,955.47 = 48,580.56 : x
  2. Step 2: Convert to fraction form
    142,125.84/212,955.47 = 48,580.56/x
  3. Step 3: Cross multiply
    142,125.84x = 212,955.47 × 48,580.56
  4. Step 4: Simplify right side
    142,125.84x = 10,345,495,744.76
  5. Step 5: Solve for x
    x = 10,345,495,744.76/142,125.84
  6. Step 6: Final answer
    x = 72,791.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.