Home / 142,748.07-214,125.57-47,979.63

Finding the Fourth Proportional to 142,748.07, 214,125.57 and 47,979.63

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Solution

The fourth proportional to 142,748.07, 214,125.57 and 47,979.63 is: 71,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,748.07 : 214,125.57 = 47,979.63 : x
  2. Step 2: Convert to fraction form
    142,748.07/214,125.57 = 47,979.63/x
  3. Step 3: Cross multiply
    142,748.07x = 214,125.57 × 47,979.63
  4. Step 4: Simplify right side
    142,748.07x = 10,273,665,622.14
  5. Step 5: Solve for x
    x = 10,273,665,622.14/142,748.07
  6. Step 6: Final answer
    x = 71,970.61

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1.5x scale

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.