Home / 124,579.20-187,041.60-77,923.20

Finding the Fourth Proportional to 124,579.20, 187,041.60 and 77,923.20

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Solution

The fourth proportional to 124,579.20, 187,041.60 and 77,923.20 is: 116,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,579.20 : 187,041.60 = 77,923.20 : x
  2. Step 2: Convert to fraction form
    124,579.20/187,041.60 = 77,923.20/x
  3. Step 3: Cross multiply
    124,579.20x = 187,041.60 × 77,923.20
  4. Step 4: Simplify right side
    124,579.20x = 14,574,880,005.12
  5. Step 5: Solve for x
    x = 14,574,880,005.12/124,579.20
  6. Step 6: Final answer
    x = 116,992.88

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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.