Home / 124,038.08-186,150.72-90,844.19

Finding the Fourth Proportional to 124,038.08, 186,150.72 and 90,844.19

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Solution

The fourth proportional to 124,038.08, 186,150.72 and 90,844.19 is: 136,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,038.08 : 186,150.72 = 90,844.19 : x
  2. Step 2: Convert to fraction form
    124,038.08/186,150.72 = 90,844.19/x
  3. Step 3: Cross multiply
    124,038.08x = 186,150.72 × 90,844.19
  4. Step 4: Simplify right side
    124,038.08x = 16,910,711,841.69
  5. Step 5: Solve for x
    x = 16,910,711,841.69/124,038.08
  6. Step 6: Final answer
    x = 136,334.85

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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.