Home / 136,585.06-188,477.76-76,153.12

Finding the Fourth Proportional to 136,585.06, 188,477.76 and 76,153.12

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Solution

The fourth proportional to 136,585.06, 188,477.76 and 76,153.12 is: 105,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,585.06 : 188,477.76 = 76,153.12 : x
  2. Step 2: Convert to fraction form
    136,585.06/188,477.76 = 76,153.12/x
  3. Step 3: Cross multiply
    136,585.06x = 188,477.76 × 76,153.12
  4. Step 4: Simplify right side
    136,585.06x = 14,353,169,474.61
  5. Step 5: Solve for x
    x = 14,353,169,474.61/136,585.06
  6. Step 6: Final answer
    x = 105,085.94

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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.