Home / 98,748.92-136,270.13-56,321.12

Finding the Fourth Proportional to 98,748.92, 136,270.13 and 56,321.12

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Solution

The fourth proportional to 98,748.92, 136,270.13 and 56,321.12 is: 77,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,748.92 : 136,270.13 = 56,321.12 : x
  2. Step 2: Convert to fraction form
    98,748.92/136,270.13 = 56,321.12/x
  3. Step 3: Cross multiply
    98,748.92x = 136,270.13 × 56,321.12
  4. Step 4: Simplify right side
    98,748.92x = 7,674,886,344.15
  5. Step 5: Solve for x
    x = 7,674,886,344.15/98,748.92
  6. Step 6: Final answer
    x = 77,721.22

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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.