Home / 124,280.96-186,237.10-91,287.68

Finding the Fourth Proportional to 124,280.96, 186,237.10 and 91,287.68

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Solution

The fourth proportional to 124,280.96, 186,237.10 and 91,287.68 is: 136,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,280.96 : 186,237.10 = 91,287.68 : x
  2. Step 2: Convert to fraction form
    124,280.96/186,237.10 = 91,287.68/x
  3. Step 3: Cross multiply
    124,280.96x = 186,237.10 × 91,287.68
  4. Step 4: Simplify right side
    124,280.96x = 17,001,152,788.93
  5. Step 5: Solve for x
    x = 17,001,152,788.93/124,280.96
  6. Step 6: Final answer
    x = 136,796.12

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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.