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Finding the Fourth Proportional to 99,888.88, 137,835.06 and 57,461.08

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Solution

The fourth proportional to 99,888.88, 137,835.06 and 57,461.08 is: 79,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,888.88 : 137,835.06 = 57,461.08 : x
  2. Step 2: Convert to fraction form
    99,888.88/137,835.06 = 57,461.08/x
  3. Step 3: Cross multiply
    99,888.88x = 137,835.06 × 57,461.08
  4. Step 4: Simplify right side
    99,888.88x = 7,920,151,409.46
  5. Step 5: Solve for x
    x = 7,920,151,409.46/99,888.88
  6. Step 6: Final answer
    x = 79,289.62

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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.