Home / 155,142.80-232,727.55-42,823.04

Finding the Fourth Proportional to 155,142.80, 232,727.55 and 42,823.04

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Solution

The fourth proportional to 155,142.80, 232,727.55 and 42,823.04 is: 64,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,142.80 : 232,727.55 = 42,823.04 : x
  2. Step 2: Convert to fraction form
    155,142.80/232,727.55 = 42,823.04/x
  3. Step 3: Cross multiply
    155,142.80x = 232,727.55 × 42,823.04
  4. Step 4: Simplify right side
    155,142.80x = 9,966,100,019.11
  5. Step 5: Solve for x
    x = 9,966,100,019.11/155,142.80
  6. Step 6: Final answer
    x = 64,238.24

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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.