Home / 104,966.24-157,218.57-86,748

Finding the Fourth Proportional to 104,966.24, 157,218.57 and 86,748

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Solution

The fourth proportional to 104,966.24, 157,218.57 and 86,748 is: 129,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,966.24 : 157,218.57 = 86,748 : x
  2. Step 2: Convert to fraction form
    104,966.24/157,218.57 = 86,748/x
  3. Step 3: Cross multiply
    104,966.24x = 157,218.57 × 86,748
  4. Step 4: Simplify right side
    104,966.24x = 13,638,396,510.36
  5. Step 5: Solve for x
    x = 13,638,396,510.36/104,966.24
  6. Step 6: Final answer
    x = 129,931.27

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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.