Home / 115,506,723.30-173,143,429.51-72,406,137.30

Finding the Fourth Proportional to 115,506,723.30, 173,143,429.51 and 72,406,137.30

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Solution

The fourth proportional to 115,506,723.30, 173,143,429.51 and 72,406,137.30 is: 108,536,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,506,723.30 : 173,143,429.51 = 72,406,137.30 : x
  2. Step 2: Convert to fraction form
    115,506,723.30/173,143,429.51 = 72,406,137.30/x
  3. Step 3: Cross multiply
    115,506,723.30x = 173,143,429.51 × 72,406,137.30
  4. Step 4: Simplify right side
    115,506,723.30x = 12,536,646,929,693,930
  5. Step 5: Solve for x
    x = 12,536,646,929,693,930/115,506,723.30
  6. Step 6: Final answer
    x = 108,536,079.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.