Home / 101,320.07-139,817.34-55,995.71

Finding the Fourth Proportional to 101,320.07, 139,817.34 and 55,995.71

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Solution

The fourth proportional to 101,320.07, 139,817.34 and 55,995.71 is: 77,271.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,320.07 : 139,817.34 = 55,995.71 : x
  2. Step 2: Convert to fraction form
    101,320.07/139,817.34 = 55,995.71/x
  3. Step 3: Cross multiply
    101,320.07x = 139,817.34 × 55,995.71
  4. Step 4: Simplify right side
    101,320.07x = 7,829,170,524.52
  5. Step 5: Solve for x
    x = 7,829,170,524.52/101,320.07
  6. Step 6: Final answer
    x = 77,271.67

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1.5x scale

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.