Home / 124,887.40-187,331.10-72,399.40

Finding the Fourth Proportional to 124,887.40, 187,331.10 and 72,399.40

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Solution

The fourth proportional to 124,887.40, 187,331.10 and 72,399.40 is: 108,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,887.40 : 187,331.10 = 72,399.40 : x
  2. Step 2: Convert to fraction form
    124,887.40/187,331.10 = 72,399.40/x
  3. Step 3: Cross multiply
    124,887.40x = 187,331.10 × 72,399.40
  4. Step 4: Simplify right side
    124,887.40x = 13,562,659,241.34
  5. Step 5: Solve for x
    x = 13,562,659,241.34/124,887.40
  6. Step 6: Final answer
    x = 108,599.10

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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.