Home / 112,830.96-155,656.62-72,537.24

Finding the Fourth Proportional to 112,830.96, 155,656.62 and 72,537.24

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Solution

The fourth proportional to 112,830.96, 155,656.62 and 72,537.24 is: 100,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,830.96 : 155,656.62 = 72,537.24 : x
  2. Step 2: Convert to fraction form
    112,830.96/155,656.62 = 72,537.24/x
  3. Step 3: Cross multiply
    112,830.96x = 155,656.62 × 72,537.24
  4. Step 4: Simplify right side
    112,830.96x = 11,290,901,602.53
  5. Step 5: Solve for x
    x = 11,290,901,602.53/112,830.96
  6. Step 6: Final answer
    x = 100,069.18

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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.