Home / 128,373.74-177,096.07-83,066.34

Finding the Fourth Proportional to 128,373.74, 177,096.07 and 83,066.34

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Solution

The fourth proportional to 128,373.74, 177,096.07 and 83,066.34 is: 114,592.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,373.74 : 177,096.07 = 83,066.34 : x
  2. Step 2: Convert to fraction form
    128,373.74/177,096.07 = 83,066.34/x
  3. Step 3: Cross multiply
    128,373.74x = 177,096.07 × 83,066.34
  4. Step 4: Simplify right side
    128,373.74x = 14,710,721,636.98
  5. Step 5: Solve for x
    x = 14,710,721,636.98/128,373.74
  6. Step 6: Final answer
    x = 114,592.92

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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.