Home / 139,927,575.60-193,161,981.30-90,392,107.56

Finding the Fourth Proportional to 139,927,575.60, 193,161,981.30 and 90,392,107.56

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Solution

The fourth proportional to 139,927,575.60, 193,161,981.30 and 90,392,107.56 is: 124,781,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927,575.60 : 193,161,981.30 = 90,392,107.56 : x
  2. Step 2: Convert to fraction form
    139,927,575.60/193,161,981.30 = 90,392,107.56/x
  3. Step 3: Cross multiply
    139,927,575.60x = 193,161,981.30 × 90,392,107.56
  4. Step 4: Simplify right side
    139,927,575.60x = 17,460,318,590,172,310
  5. Step 5: Solve for x
    x = 17,460,318,590,172,310/139,927,575.60
  6. Step 6: Final answer
    x = 124,781,112.77

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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.