Home / 112,409.50-155,125.20-62,108.50

Finding the Fourth Proportional to 112,409.50, 155,125.20 and 62,108.50

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Solution

The fourth proportional to 112,409.50, 155,125.20 and 62,108.50 is: 85,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,409.50 : 155,125.20 = 62,108.50 : x
  2. Step 2: Convert to fraction form
    112,409.50/155,125.20 = 62,108.50/x
  3. Step 3: Cross multiply
    112,409.50x = 155,125.20 × 62,108.50
  4. Step 4: Simplify right side
    112,409.50x = 9,634,593,484.20
  5. Step 5: Solve for x
    x = 9,634,593,484.20/112,409.50
  6. Step 6: Final answer
    x = 85,709.78

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1.5x scale

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.