Home / 142,007.76-212,857.60-70,010.56

Finding the Fourth Proportional to 142,007.76, 212,857.60 and 70,010.56

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Solution

The fourth proportional to 142,007.76, 212,857.60 and 70,010.56 is: 104,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,007.76 : 212,857.60 = 70,010.56 : x
  2. Step 2: Convert to fraction form
    142,007.76/212,857.60 = 70,010.56/x
  3. Step 3: Cross multiply
    142,007.76x = 212,857.60 × 70,010.56
  4. Step 4: Simplify right side
    142,007.76x = 14,902,279,776.26
  5. Step 5: Solve for x
    x = 14,902,279,776.26/142,007.76
  6. Step 6: Final answer
    x = 104,939.90

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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.