Home / 142,205.60-213,308.40-48,699.20

Finding the Fourth Proportional to 142,205.60, 213,308.40 and 48,699.20

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Solution

The fourth proportional to 142,205.60, 213,308.40 and 48,699.20 is: 73,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,205.60 : 213,308.40 = 48,699.20 : x
  2. Step 2: Convert to fraction form
    142,205.60/213,308.40 = 48,699.20/x
  3. Step 3: Cross multiply
    142,205.60x = 213,308.40 × 48,699.20
  4. Step 4: Simplify right side
    142,205.60x = 10,387,948,433.28
  5. Step 5: Solve for x
    x = 10,387,948,433.28/142,205.60
  6. Step 6: Final answer
    x = 73,048.80

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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.