Home / 101,531.16-140,117.58-56,819.16

Finding the Fourth Proportional to 101,531.16, 140,117.58 and 56,819.16

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Solution

The fourth proportional to 101,531.16, 140,117.58 and 56,819.16 is: 78,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,531.16 : 140,117.58 = 56,819.16 : x
  2. Step 2: Convert to fraction form
    101,531.16/140,117.58 = 56,819.16/x
  3. Step 3: Cross multiply
    101,531.16x = 140,117.58 × 56,819.16
  4. Step 4: Simplify right side
    101,531.16x = 7,961,363,196.83
  5. Step 5: Solve for x
    x = 7,961,363,196.83/101,531.16
  6. Step 6: Final answer
    x = 78,413.00

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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.