Home / 142,128.68-213,176.48-36,955.85

Finding the Fourth Proportional to 142,128.68, 213,176.48 and 36,955.85

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Solution

The fourth proportional to 142,128.68, 213,176.48 and 36,955.85 is: 55,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,128.68 : 213,176.48 = 36,955.85 : x
  2. Step 2: Convert to fraction form
    142,128.68/213,176.48 = 36,955.85/x
  3. Step 3: Cross multiply
    142,128.68x = 213,176.48 × 36,955.85
  4. Step 4: Simplify right side
    142,128.68x = 7,878,116,767.75
  5. Step 5: Solve for x
    x = 7,878,116,767.75/142,128.68
  6. Step 6: Final answer
    x = 55,429.47

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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.