Home / 145,834.37-218,758.48-70,865.21

Finding the Fourth Proportional to 145,834.37, 218,758.48 and 70,865.21

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Solution

The fourth proportional to 145,834.37, 218,758.48 and 70,865.21 is: 106,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,834.37 : 218,758.48 = 70,865.21 : x
  2. Step 2: Convert to fraction form
    145,834.37/218,758.48 = 70,865.21/x
  3. Step 3: Cross multiply
    145,834.37x = 218,758.48 × 70,865.21
  4. Step 4: Simplify right side
    145,834.37x = 15,502,364,778.32
  5. Step 5: Solve for x
    x = 15,502,364,778.32/145,834.37
  6. Step 6: Final answer
    x = 106,301.17

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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.