Home / 99,888.02-137,849.65-57,446.58

Finding the Fourth Proportional to 99,888.02, 137,849.65 and 57,446.58

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Solution

The fourth proportional to 99,888.02, 137,849.65 and 57,446.58 is: 79,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,888.02 : 137,849.65 = 57,446.58 : x
  2. Step 2: Convert to fraction form
    99,888.02/137,849.65 = 57,446.58/x
  3. Step 3: Cross multiply
    99,888.02x = 137,849.65 × 57,446.58
  4. Step 4: Simplify right side
    99,888.02x = 7,918,990,946.70
  5. Step 5: Solve for x
    x = 7,918,990,946.70/99,888.02
  6. Step 6: Final answer
    x = 79,278.69

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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.