Home / 103,686.45-155,238.07-93,188.85

Finding the Fourth Proportional to 103,686.45, 155,238.07 and 93,188.85

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Solution

The fourth proportional to 103,686.45, 155,238.07 and 93,188.85 is: 139,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.45 : 155,238.07 = 93,188.85 : x
  2. Step 2: Convert to fraction form
    103,686.45/155,238.07 = 93,188.85/x
  3. Step 3: Cross multiply
    103,686.45x = 155,238.07 × 93,188.85
  4. Step 4: Simplify right side
    103,686.45x = 14,466,457,219.52
  5. Step 5: Solve for x
    x = 14,466,457,219.52/103,686.45
  6. Step 6: Final answer
    x = 139,521.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.