Home / 98,521.20-147,780.18-66,852.50

Finding the Fourth Proportional to 98,521.20, 147,780.18 and 66,852.50

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Solution

The fourth proportional to 98,521.20, 147,780.18 and 66,852.50 is: 100,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,521.20 : 147,780.18 = 66,852.50 : x
  2. Step 2: Convert to fraction form
    98,521.20/147,780.18 = 66,852.50/x
  3. Step 3: Cross multiply
    98,521.20x = 147,780.18 × 66,852.50
  4. Step 4: Simplify right side
    98,521.20x = 9,879,473,744.55
  5. Step 5: Solve for x
    x = 9,879,473,744.55/98,521.20
  6. Step 6: Final answer
    x = 100,277.64

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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.