Home / 128,222.46-176,937.74-70,861.10

Finding the Fourth Proportional to 128,222.46, 176,937.74 and 70,861.10

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Solution

The fourth proportional to 128,222.46, 176,937.74 and 70,861.10 is: 97,783.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,222.46 : 176,937.74 = 70,861.10 : x
  2. Step 2: Convert to fraction form
    128,222.46/176,937.74 = 70,861.10/x
  3. Step 3: Cross multiply
    128,222.46x = 176,937.74 × 70,861.10
  4. Step 4: Simplify right side
    128,222.46x = 12,538,002,887.91
  5. Step 5: Solve for x
    x = 12,538,002,887.91/128,222.46
  6. Step 6: Final answer
    x = 97,783.20

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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.