Home / 136,587.30-188,476.68-76,152.28

Finding the Fourth Proportional to 136,587.30, 188,476.68 and 76,152.28

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Solution

The fourth proportional to 136,587.30, 188,476.68 and 76,152.28 is: 105,082.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,587.30 : 188,476.68 = 76,152.28 : x
  2. Step 2: Convert to fraction form
    136,587.30/188,476.68 = 76,152.28/x
  3. Step 3: Cross multiply
    136,587.30x = 188,476.68 × 76,152.28
  4. Step 4: Simplify right side
    136,587.30x = 14,352,928,908.83
  5. Step 5: Solve for x
    x = 14,352,928,908.83/136,587.30
  6. Step 6: Final answer
    x = 105,082.46

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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.