Home / 136,830.58-188,824.24-76,402.18

Finding the Fourth Proportional to 136,830.58, 188,824.24 and 76,402.18

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Solution

The fourth proportional to 136,830.58, 188,824.24 and 76,402.18 is: 105,433.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,830.58 : 188,824.24 = 76,402.18 : x
  2. Step 2: Convert to fraction form
    136,830.58/188,824.24 = 76,402.18/x
  3. Step 3: Cross multiply
    136,830.58x = 188,824.24 × 76,402.18
  4. Step 4: Simplify right side
    136,830.58x = 14,426,583,572.84
  5. Step 5: Solve for x
    x = 14,426,583,572.84/136,830.58
  6. Step 6: Final answer
    x = 105,433.91

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1.5x scale

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.