Home / 106,772,772.08-160,157,996.84-81,023,209.86

Finding the Fourth Proportional to 106,772,772.08, 160,157,996.84 and 81,023,209.86

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Solution

The fourth proportional to 106,772,772.08, 160,157,996.84 and 81,023,209.86 is: 121,533,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,772,772.08 : 160,157,996.84 = 81,023,209.86 : x
  2. Step 2: Convert to fraction form
    106,772,772.08/160,157,996.84 = 81,023,209.86/x
  3. Step 3: Cross multiply
    106,772,772.08x = 160,157,996.84 × 81,023,209.86
  4. Step 4: Simplify right side
    106,772,772.08x = 12,976,514,988,724,538
  5. Step 5: Solve for x
    x = 12,976,514,988,724,538/106,772,772.08
  6. Step 6: Final answer
    x = 121,533,933.57

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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.