Home / 149,931.99-206,886.15-96,289.61

Finding the Fourth Proportional to 149,931.99, 206,886.15 and 96,289.61

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Solution

The fourth proportional to 149,931.99, 206,886.15 and 96,289.61 is: 132,866.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,931.99 : 206,886.15 = 96,289.61 : x
  2. Step 2: Convert to fraction form
    149,931.99/206,886.15 = 96,289.61/x
  3. Step 3: Cross multiply
    149,931.99x = 206,886.15 × 96,289.61
  4. Step 4: Simplify right side
    149,931.99x = 19,920,985,663.47
  5. Step 5: Solve for x
    x = 19,920,985,663.47/149,931.99
  6. Step 6: Final answer
    x = 132,866.81

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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.