Home / 124,520.70-171,837.75-70,805.72

Finding the Fourth Proportional to 124,520.70, 171,837.75 and 70,805.72

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Solution

The fourth proportional to 124,520.70, 171,837.75 and 70,805.72 is: 97,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,520.70 : 171,837.75 = 70,805.72 : x
  2. Step 2: Convert to fraction form
    124,520.70/171,837.75 = 70,805.72/x
  3. Step 3: Cross multiply
    124,520.70x = 171,837.75 × 70,805.72
  4. Step 4: Simplify right side
    124,520.70x = 12,167,094,398.71
  5. Step 5: Solve for x
    x = 12,167,094,398.71/124,520.70
  6. Step 6: Final answer
    x = 97,711.42

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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.