Home / 136,612.56-188,526.33-76,187.10

Finding the Fourth Proportional to 136,612.56, 188,526.33 and 76,187.10

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Solution

The fourth proportional to 136,612.56, 188,526.33 and 76,187.10 is: 105,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,612.56 : 188,526.33 = 76,187.10 : x
  2. Step 2: Convert to fraction form
    136,612.56/188,526.33 = 76,187.10/x
  3. Step 3: Cross multiply
    136,612.56x = 188,526.33 × 76,187.10
  4. Step 4: Simplify right side
    136,612.56x = 14,363,274,356.34
  5. Step 5: Solve for x
    x = 14,363,274,356.34/136,612.56
  6. Step 6: Final answer
    x = 105,138.75

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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.