Home / 175,424.34-242,196.28-121,690.56

Finding the Fourth Proportional to 175,424.34, 242,196.28 and 121,690.56

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Solution

The fourth proportional to 175,424.34, 242,196.28 and 121,690.56 is: 168,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,424.34 : 242,196.28 = 121,690.56 : x
  2. Step 2: Convert to fraction form
    175,424.34/242,196.28 = 121,690.56/x
  3. Step 3: Cross multiply
    175,424.34x = 242,196.28 × 121,690.56
  4. Step 4: Simplify right side
    175,424.34x = 29,473,000,943.12
  5. Step 5: Solve for x
    x = 29,473,000,943.12/175,424.34
  6. Step 6: Final answer
    x = 168,009.76

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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.