Home / 99,357.23-137,114.17-54,036.35

Finding the Fourth Proportional to 99,357.23, 137,114.17 and 54,036.35

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Solution

The fourth proportional to 99,357.23, 137,114.17 and 54,036.35 is: 74,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,357.23 : 137,114.17 = 54,036.35 : x
  2. Step 2: Convert to fraction form
    99,357.23/137,114.17 = 54,036.35/x
  3. Step 3: Cross multiply
    99,357.23x = 137,114.17 × 54,036.35
  4. Step 4: Simplify right side
    99,357.23x = 7,409,148,973.60
  5. Step 5: Solve for x
    x = 7,409,148,973.60/99,357.23
  6. Step 6: Final answer
    x = 74,570.81

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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.