Home / 138,417.48-207,513.65-58,403.79

Finding the Fourth Proportional to 138,417.48, 207,513.65 and 58,403.79

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Solution

The fourth proportional to 138,417.48, 207,513.65 and 58,403.79 is: 87,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,417.48 : 207,513.65 = 58,403.79 : x
  2. Step 2: Convert to fraction form
    138,417.48/207,513.65 = 58,403.79/x
  3. Step 3: Cross multiply
    138,417.48x = 207,513.65 × 58,403.79
  4. Step 4: Simplify right side
    138,417.48x = 12,119,583,782.74
  5. Step 5: Solve for x
    x = 12,119,583,782.74/138,417.48
  6. Step 6: Final answer
    x = 87,558.19

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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.