Home / 124,782.48-186,998.64-83,142

Finding the Fourth Proportional to 124,782.48, 186,998.64 and 83,142

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Solution

The fourth proportional to 124,782.48, 186,998.64 and 83,142 is: 124,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,782.48 : 186,998.64 = 83,142 : x
  2. Step 2: Convert to fraction form
    124,782.48/186,998.64 = 83,142/x
  3. Step 3: Cross multiply
    124,782.48x = 186,998.64 × 83,142
  4. Step 4: Simplify right side
    124,782.48x = 15,547,440,926.88
  5. Step 5: Solve for x
    x = 15,547,440,926.88/124,782.48
  6. Step 6: Final answer
    x = 124,596.34

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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.