Home / 142,003.22-213,045.78-45,938.30

Finding the Fourth Proportional to 142,003.22, 213,045.78 and 45,938.30

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Solution

The fourth proportional to 142,003.22, 213,045.78 and 45,938.30 is: 68,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,003.22 : 213,045.78 = 45,938.30 : x
  2. Step 2: Convert to fraction form
    142,003.22/213,045.78 = 45,938.30/x
  3. Step 3: Cross multiply
    142,003.22x = 213,045.78 × 45,938.30
  4. Step 4: Simplify right side
    142,003.22x = 9,786,960,955.37
  5. Step 5: Solve for x
    x = 9,786,960,955.37/142,003.22
  6. Step 6: Final answer
    x = 68,920.70

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1.5x scale

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.