Home / 99,130.61-136,802.68-53,808.48

Finding the Fourth Proportional to 99,130.61, 136,802.68 and 53,808.48

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Solution

The fourth proportional to 99,130.61, 136,802.68 and 53,808.48 is: 74,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,130.61 : 136,802.68 = 53,808.48 : x
  2. Step 2: Convert to fraction form
    99,130.61/136,802.68 = 53,808.48/x
  3. Step 3: Cross multiply
    99,130.61x = 136,802.68 × 53,808.48
  4. Step 4: Simplify right side
    99,130.61x = 7,361,144,270.73
  5. Step 5: Solve for x
    x = 7,361,144,270.73/99,130.61
  6. Step 6: Final answer
    x = 74,257.03

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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.