Home / 97,396.93-134,409.45-57,139.66

Finding the Fourth Proportional to 97,396.93, 134,409.45 and 57,139.66

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Solution

The fourth proportional to 97,396.93, 134,409.45 and 57,139.66 is: 78,853.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,396.93 : 134,409.45 = 57,139.66 : x
  2. Step 2: Convert to fraction form
    97,396.93/134,409.45 = 57,139.66/x
  3. Step 3: Cross multiply
    97,396.93x = 134,409.45 × 57,139.66
  4. Step 4: Simplify right side
    97,396.93x = 7,680,110,273.79
  5. Step 5: Solve for x
    x = 7,680,110,273.79/97,396.93
  6. Step 6: Final answer
    x = 78,853.72

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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.