Home / 98,543.10-147,686.10-45,215.83

Finding the Fourth Proportional to 98,543.10, 147,686.10 and 45,215.83

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Solution

The fourth proportional to 98,543.10, 147,686.10 and 45,215.83 is: 67,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,543.10 : 147,686.10 = 45,215.83 : x
  2. Step 2: Convert to fraction form
    98,543.10/147,686.10 = 45,215.83/x
  3. Step 3: Cross multiply
    98,543.10x = 147,686.10 × 45,215.83
  4. Step 4: Simplify right side
    98,543.10x = 6,677,749,590.96
  5. Step 5: Solve for x
    x = 6,677,749,590.96/98,543.10
  6. Step 6: Final answer
    x = 67,764.76

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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.