Home / 103,130.48-154,389.36-56,241.20

Finding the Fourth Proportional to 103,130.48, 154,389.36 and 56,241.20

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Solution

The fourth proportional to 103,130.48, 154,389.36 and 56,241.20 is: 84,194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,130.48 : 154,389.36 = 56,241.20 : x
  2. Step 2: Convert to fraction form
    103,130.48/154,389.36 = 56,241.20/x
  3. Step 3: Cross multiply
    103,130.48x = 154,389.36 × 56,241.20
  4. Step 4: Simplify right side
    103,130.48x = 8,683,042,873.63
  5. Step 5: Solve for x
    x = 8,683,042,873.63/103,130.48
  6. Step 6: Final answer
    x = 84,194.73

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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.