Home / 142,042.16-213,056.32-53,288.76

Finding the Fourth Proportional to 142,042.16, 213,056.32 and 53,288.76

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Solution

The fourth proportional to 142,042.16, 213,056.32 and 53,288.76 is: 79,930.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,042.16 : 213,056.32 = 53,288.76 : x
  2. Step 2: Convert to fraction form
    142,042.16/213,056.32 = 53,288.76/x
  3. Step 3: Cross multiply
    142,042.16x = 213,056.32 × 53,288.76
  4. Step 4: Simplify right side
    142,042.16x = 11,353,507,102.96
  5. Step 5: Solve for x
    x = 11,353,507,102.96/142,042.16
  6. Step 6: Final answer
    x = 79,930.54

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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.