Home / 98,999.20-148,498.80-54,712.45

Finding the Fourth Proportional to 98,999.20, 148,498.80 and 54,712.45

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Solution

The fourth proportional to 98,999.20, 148,498.80 and 54,712.45 is: 82,068.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,999.20 : 148,498.80 = 54,712.45 : x
  2. Step 2: Convert to fraction form
    98,999.20/148,498.80 = 54,712.45/x
  3. Step 3: Cross multiply
    98,999.20x = 148,498.80 × 54,712.45
  4. Step 4: Simplify right side
    98,999.20x = 8,124,733,170.06
  5. Step 5: Solve for x
    x = 8,124,733,170.06/98,999.20
  6. Step 6: Final answer
    x = 82,068.68

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1.5x scale

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.