Home / 142,459.20-213,429.60-116,020.80

Finding the Fourth Proportional to 142,459.20, 213,429.60 and 116,020.80

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Solution

The fourth proportional to 142,459.20, 213,429.60 and 116,020.80 is: 173,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,459.20 : 213,429.60 = 116,020.80 : x
  2. Step 2: Convert to fraction form
    142,459.20/213,429.60 = 116,020.80/x
  3. Step 3: Cross multiply
    142,459.20x = 213,429.60 × 116,020.80
  4. Step 4: Simplify right side
    142,459.20x = 24,762,272,935.68
  5. Step 5: Solve for x
    x = 24,762,272,935.68/142,459.20
  6. Step 6: Final answer
    x = 173,820.10

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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.