Home / 101,603.07-140,213.36-56,281.75

Finding the Fourth Proportional to 101,603.07, 140,213.36 and 56,281.75

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Solution

The fourth proportional to 101,603.07, 140,213.36 and 56,281.75 is: 77,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,603.07 : 140,213.36 = 56,281.75 : x
  2. Step 2: Convert to fraction form
    101,603.07/140,213.36 = 56,281.75/x
  3. Step 3: Cross multiply
    101,603.07x = 140,213.36 × 56,281.75
  4. Step 4: Simplify right side
    101,603.07x = 7,891,453,274.18
  5. Step 5: Solve for x
    x = 7,891,453,274.18/101,603.07
  6. Step 6: Final answer
    x = 77,669.44

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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.