Home / 101,857.07-140,560.64-56,532.40

Finding the Fourth Proportional to 101,857.07, 140,560.64 and 56,532.40

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Solution

The fourth proportional to 101,857.07, 140,560.64 and 56,532.40 is: 78,013.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,857.07 : 140,560.64 = 56,532.40 : x
  2. Step 2: Convert to fraction form
    101,857.07/140,560.64 = 56,532.40/x
  3. Step 3: Cross multiply
    101,857.07x = 140,560.64 × 56,532.40
  4. Step 4: Simplify right side
    101,857.07x = 7,946,229,621.93
  5. Step 5: Solve for x
    x = 7,946,229,621.93/101,857.07
  6. Step 6: Final answer
    x = 78,013.53

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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.