Home / 124,638.16-186,980.48-40,390.81

Finding the Fourth Proportional to 124,638.16, 186,980.48 and 40,390.81

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Solution

The fourth proportional to 124,638.16, 186,980.48 and 40,390.81 is: 60,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,638.16 : 186,980.48 = 40,390.81 : x
  2. Step 2: Convert to fraction form
    124,638.16/186,980.48 = 40,390.81/x
  3. Step 3: Cross multiply
    124,638.16x = 186,980.48 × 40,390.81
  4. Step 4: Simplify right side
    124,638.16x = 7,552,293,041.39
  5. Step 5: Solve for x
    x = 7,552,293,041.39/124,638.16
  6. Step 6: Final answer
    x = 60,593.75

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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.