Home / 112,931.76-155,852.28-68,234.16

Finding the Fourth Proportional to 112,931.76, 155,852.28 and 68,234.16

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Solution

The fourth proportional to 112,931.76, 155,852.28 and 68,234.16 is: 94,167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,931.76 : 155,852.28 = 68,234.16 : x
  2. Step 2: Convert to fraction form
    112,931.76/155,852.28 = 68,234.16/x
  3. Step 3: Cross multiply
    112,931.76x = 155,852.28 × 68,234.16
  4. Step 4: Simplify right side
    112,931.76x = 10,634,449,409.88
  5. Step 5: Solve for x
    x = 10,634,449,409.88/112,931.76
  6. Step 6: Final answer
    x = 94,167.04

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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.