Home / 124,439.60-186,637.80-45,513.20

Finding the Fourth Proportional to 124,439.60, 186,637.80 and 45,513.20

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Solution

The fourth proportional to 124,439.60, 186,637.80 and 45,513.20 is: 68,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,439.60 : 186,637.80 = 45,513.20 : x
  2. Step 2: Convert to fraction form
    124,439.60/186,637.80 = 45,513.20/x
  3. Step 3: Cross multiply
    124,439.60x = 186,637.80 × 45,513.20
  4. Step 4: Simplify right side
    124,439.60x = 8,494,483,518.96
  5. Step 5: Solve for x
    x = 8,494,483,518.96/124,439.60
  6. Step 6: Final answer
    x = 68,261.90

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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.