Home / 129,532.64-178,653.74-84,225.29

Finding the Fourth Proportional to 129,532.64, 178,653.74 and 84,225.29

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Solution

The fourth proportional to 129,532.64, 178,653.74 and 84,225.29 is: 116,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,532.64 : 178,653.74 = 84,225.29 : x
  2. Step 2: Convert to fraction form
    129,532.64/178,653.74 = 84,225.29/x
  3. Step 3: Cross multiply
    129,532.64x = 178,653.74 × 84,225.29
  4. Step 4: Simplify right side
    129,532.64x = 15,047,161,746.69
  5. Step 5: Solve for x
    x = 15,047,161,746.69/129,532.64
  6. Step 6: Final answer
    x = 116,165.02

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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.