Home / 129,601.40-178,883.28-84,392.24

Finding the Fourth Proportional to 129,601.40, 178,883.28 and 84,392.24

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Solution

The fourth proportional to 129,601.40, 178,883.28 and 84,392.24 is: 116,483.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,601.40 : 178,883.28 = 84,392.24 : x
  2. Step 2: Convert to fraction form
    129,601.40/178,883.28 = 84,392.24/x
  3. Step 3: Cross multiply
    129,601.40x = 178,883.28 × 84,392.24
  4. Step 4: Simplify right side
    129,601.40x = 15,096,360,697.75
  5. Step 5: Solve for x
    x = 15,096,360,697.75/129,601.40
  6. Step 6: Final answer
    x = 116,483.01

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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.