Home / 156,937.06-216,570.58-85,318.88

Finding the Fourth Proportional to 156,937.06, 216,570.58 and 85,318.88

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Solution

The fourth proportional to 156,937.06, 216,570.58 and 85,318.88 is: 117,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937.06 : 216,570.58 = 85,318.88 : x
  2. Step 2: Convert to fraction form
    156,937.06/216,570.58 = 85,318.88/x
  3. Step 3: Cross multiply
    156,937.06x = 216,570.58 × 85,318.88
  4. Step 4: Simplify right side
    156,937.06x = 18,477,559,326.55
  5. Step 5: Solve for x
    x = 18,477,559,326.55/156,937.06
  6. Step 6: Final answer
    x = 117,738.66

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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.