Home / 112,409.86-155,125.29-62,108.50

Finding the Fourth Proportional to 112,409.86, 155,125.29 and 62,108.50

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Solution

The fourth proportional to 112,409.86, 155,125.29 and 62,108.50 is: 85,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,409.86 : 155,125.29 = 62,108.50 : x
  2. Step 2: Convert to fraction form
    112,409.86/155,125.29 = 62,108.50/x
  3. Step 3: Cross multiply
    112,409.86x = 155,125.29 × 62,108.50
  4. Step 4: Simplify right side
    112,409.86x = 9,634,599,073.97
  5. Step 5: Solve for x
    x = 9,634,599,073.97/112,409.86
  6. Step 6: Final answer
    x = 85,709.55

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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.