Home / 123,781,761.84-170,808,825-71,574,183.60

Finding the Fourth Proportional to 123,781,761.84, 170,808,825 and 71,574,183.60

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Solution

The fourth proportional to 123,781,761.84, 170,808,825 and 71,574,183.60 is: 98,766,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781,761.84 : 170,808,825 = 71,574,183.60 : x
  2. Step 2: Convert to fraction form
    123,781,761.84/170,808,825 = 71,574,183.60/x
  3. Step 3: Cross multiply
    123,781,761.84x = 170,808,825 × 71,574,183.60
  4. Step 4: Simplify right side
    123,781,761.84x = 12,225,502,201,050,268
  5. Step 5: Solve for x
    x = 12,225,502,201,050,268/123,781,761.84
  6. Step 6: Final answer
    x = 98,766,587.41

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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.