Home / 90,050.31-134,954.73-70,083.92

Finding the Fourth Proportional to 90,050.31, 134,954.73 and 70,083.92

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Solution

The fourth proportional to 90,050.31, 134,954.73 and 70,083.92 is: 105,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,050.31 : 134,954.73 = 70,083.92 : x
  2. Step 2: Convert to fraction form
    90,050.31/134,954.73 = 70,083.92/x
  3. Step 3: Cross multiply
    90,050.31x = 134,954.73 × 70,083.92
  4. Step 4: Simplify right side
    90,050.31x = 9,458,155,826.17
  5. Step 5: Solve for x
    x = 9,458,155,826.17/90,050.31
  6. Step 6: Final answer
    x = 105,031.90

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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.