Home / 98,970.18-148,487.84-65,820.66

Finding the Fourth Proportional to 98,970.18, 148,487.84 and 65,820.66

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Solution

The fourth proportional to 98,970.18, 148,487.84 and 65,820.66 is: 98,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,970.18 : 148,487.84 = 65,820.66 : x
  2. Step 2: Convert to fraction form
    98,970.18/148,487.84 = 65,820.66/x
  3. Step 3: Cross multiply
    98,970.18x = 148,487.84 × 65,820.66
  4. Step 4: Simplify right side
    98,970.18x = 9,773,567,630.77
  5. Step 5: Solve for x
    x = 9,773,567,630.77/98,970.18
  6. Step 6: Final answer
    x = 98,752.65

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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.