Home / 98,686.69-136,187.39-55,666.04

Finding the Fourth Proportional to 98,686.69, 136,187.39 and 55,666.04

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Solution

The fourth proportional to 98,686.69, 136,187.39 and 55,666.04 is: 76,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,686.69 : 136,187.39 = 55,666.04 : x
  2. Step 2: Convert to fraction form
    98,686.69/136,187.39 = 55,666.04/x
  3. Step 3: Cross multiply
    98,686.69x = 136,187.39 × 55,666.04
  4. Step 4: Simplify right side
    98,686.69x = 7,581,012,157.46
  5. Step 5: Solve for x
    x = 7,581,012,157.46/98,686.69
  6. Step 6: Final answer
    x = 76,819.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.