Home / 99,438.30-137,223.93-54,116.34

Finding the Fourth Proportional to 99,438.30, 137,223.93 and 54,116.34

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Solution

The fourth proportional to 99,438.30, 137,223.93 and 54,116.34 is: 74,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,438.30 : 137,223.93 = 54,116.34 : x
  2. Step 2: Convert to fraction form
    99,438.30/137,223.93 = 54,116.34/x
  3. Step 3: Cross multiply
    99,438.30x = 137,223.93 × 54,116.34
  4. Step 4: Simplify right side
    99,438.30x = 7,426,056,852.02
  5. Step 5: Solve for x
    x = 7,426,056,852.02/99,438.30
  6. Step 6: Final answer
    x = 74,680.05

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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.