Home / 179,070.22-247,117.05-103,618.72

Finding the Fourth Proportional to 179,070.22, 247,117.05 and 103,618.72

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Solution

The fourth proportional to 179,070.22, 247,117.05 and 103,618.72 is: 142,993.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,070.22 : 247,117.05 = 103,618.72 : x
  2. Step 2: Convert to fraction form
    179,070.22/247,117.05 = 103,618.72/x
  3. Step 3: Cross multiply
    179,070.22x = 247,117.05 × 103,618.72
  4. Step 4: Simplify right side
    179,070.22x = 25,605,952,411.18
  5. Step 5: Solve for x
    x = 25,605,952,411.18/179,070.22
  6. Step 6: Final answer
    x = 142,993.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.