Home / 129,477.42-178,610.67-84,094.74

Finding the Fourth Proportional to 129,477.42, 178,610.67 and 84,094.74

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Solution

The fourth proportional to 129,477.42, 178,610.67 and 84,094.74 is: 116,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,477.42 : 178,610.67 = 84,094.74 : x
  2. Step 2: Convert to fraction form
    129,477.42/178,610.67 = 84,094.74/x
  3. Step 3: Cross multiply
    129,477.42x = 178,610.67 × 84,094.74
  4. Step 4: Simplify right side
    129,477.42x = 15,020,217,854.88
  5. Step 5: Solve for x
    x = 15,020,217,854.88/129,477.42
  6. Step 6: Final answer
    x = 116,006.47

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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.