Home / 102,708,830.86-141,655,540.91-90,292,376.23

Finding the Fourth Proportional to 102,708,830.86, 141,655,540.91 and 90,292,376.23

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Solution

The fourth proportional to 102,708,830.86, 141,655,540.91 and 90,292,376.23 is: 124,530,824.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,708,830.86 : 141,655,540.91 = 90,292,376.23 : x
  2. Step 2: Convert to fraction form
    102,708,830.86/141,655,540.91 = 90,292,376.23/x
  3. Step 3: Cross multiply
    102,708,830.86x = 141,655,540.91 × 90,292,376.23
  4. Step 4: Simplify right side
    102,708,830.86x = 12,790,415,394,104,276
  5. Step 5: Solve for x
    x = 12,790,415,394,104,276/102,708,830.86
  6. Step 6: Final answer
    x = 124,530,824.54

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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.