Home / 139,817.40-192,950.28-76,155.24

Finding the Fourth Proportional to 139,817.40, 192,950.28 and 76,155.24

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Solution

The fourth proportional to 139,817.40, 192,950.28 and 76,155.24 is: 105,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,817.40 : 192,950.28 = 76,155.24 : x
  2. Step 2: Convert to fraction form
    139,817.40/192,950.28 = 76,155.24/x
  3. Step 3: Cross multiply
    139,817.40x = 192,950.28 × 76,155.24
  4. Step 4: Simplify right side
    139,817.40x = 14,694,174,881.47
  5. Step 5: Solve for x
    x = 14,694,174,881.47/139,817.40
  6. Step 6: Final answer
    x = 105,095.47

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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.