Home / 98,537.18-135,981.29-53,215.16

Finding the Fourth Proportional to 98,537.18, 135,981.29 and 53,215.16

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Solution

The fourth proportional to 98,537.18, 135,981.29 and 53,215.16 is: 73,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,537.18 : 135,981.29 = 53,215.16 : x
  2. Step 2: Convert to fraction form
    98,537.18/135,981.29 = 53,215.16/x
  3. Step 3: Cross multiply
    98,537.18x = 135,981.29 × 53,215.16
  4. Step 4: Simplify right side
    98,537.18x = 7,236,265,557.49
  5. Step 5: Solve for x
    x = 7,236,265,557.49/98,537.18
  6. Step 6: Final answer
    x = 73,436.91

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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.