Home / 129,320.40-178,579.44-97,434

Finding the Fourth Proportional to 129,320.40, 178,579.44 and 97,434

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Solution

The fourth proportional to 129,320.40, 178,579.44 and 97,434 is: 134,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,320.40 : 178,579.44 = 97,434 : x
  2. Step 2: Convert to fraction form
    129,320.40/178,579.44 = 97,434/x
  3. Step 3: Cross multiply
    129,320.40x = 178,579.44 × 97,434
  4. Step 4: Simplify right side
    129,320.40x = 17,399,709,156.96
  5. Step 5: Solve for x
    x = 17,399,709,156.96/129,320.40
  6. Step 6: Final answer
    x = 134,547.29

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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.