Home / 112,679.79-168,774.04-56,421.78

Finding the Fourth Proportional to 112,679.79, 168,774.04 and 56,421.78

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Solution

The fourth proportional to 112,679.79, 168,774.04 and 56,421.78 is: 84,509.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,679.79 : 168,774.04 = 56,421.78 : x
  2. Step 2: Convert to fraction form
    112,679.79/168,774.04 = 56,421.78/x
  3. Step 3: Cross multiply
    112,679.79x = 168,774.04 × 56,421.78
  4. Step 4: Simplify right side
    112,679.79x = 9,522,531,685.86
  5. Step 5: Solve for x
    x = 9,522,531,685.86/112,679.79
  6. Step 6: Final answer
    x = 84,509.67

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1.5x scale

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.