Home / 99,389.88-137,157.98-56,973.02

Finding the Fourth Proportional to 99,389.88, 137,157.98 and 56,973.02

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Solution

The fourth proportional to 99,389.88, 137,157.98 and 56,973.02 is: 78,622.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,389.88 : 137,157.98 = 56,973.02 : x
  2. Step 2: Convert to fraction form
    99,389.88/137,157.98 = 56,973.02/x
  3. Step 3: Cross multiply
    99,389.88x = 137,157.98 × 56,973.02
  4. Step 4: Simplify right side
    99,389.88x = 7,814,303,367.04
  5. Step 5: Solve for x
    x = 7,814,303,367.04/99,389.88
  6. Step 6: Final answer
    x = 78,622.73

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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.