Home / 139,802.52-192,924.27-76,138.95

Finding the Fourth Proportional to 139,802.52, 192,924.27 and 76,138.95

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Solution

The fourth proportional to 139,802.52, 192,924.27 and 76,138.95 is: 105,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,802.52 : 192,924.27 = 76,138.95 : x
  2. Step 2: Convert to fraction form
    139,802.52/192,924.27 = 76,138.95/x
  3. Step 3: Cross multiply
    139,802.52x = 192,924.27 × 76,138.95
  4. Step 4: Simplify right side
    139,802.52x = 14,689,051,347.32
  5. Step 5: Solve for x
    x = 14,689,051,347.32/139,802.52
  6. Step 6: Final answer
    x = 105,070.00

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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.