Home / 125,851.35-173,699.73-72,172.65

Finding the Fourth Proportional to 125,851.35, 173,699.73 and 72,172.65

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Solution

The fourth proportional to 125,851.35, 173,699.73 and 72,172.65 is: 99,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,851.35 : 173,699.73 = 72,172.65 : x
  2. Step 2: Convert to fraction form
    125,851.35/173,699.73 = 72,172.65/x
  3. Step 3: Cross multiply
    125,851.35x = 173,699.73 × 72,172.65
  4. Step 4: Simplify right side
    125,851.35x = 12,536,369,818.38
  5. Step 5: Solve for x
    x = 12,536,369,818.38/125,851.35
  6. Step 6: Final answer
    x = 99,612.52

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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.