Home / 155,935.04-215,190.47-84,315.11

Finding the Fourth Proportional to 155,935.04, 215,190.47 and 84,315.11

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Solution

The fourth proportional to 155,935.04, 215,190.47 and 84,315.11 is: 116,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,935.04 : 215,190.47 = 84,315.11 : x
  2. Step 2: Convert to fraction form
    155,935.04/215,190.47 = 84,315.11/x
  3. Step 3: Cross multiply
    155,935.04x = 215,190.47 × 84,315.11
  4. Step 4: Simplify right side
    155,935.04x = 18,143,807,283.84
  5. Step 5: Solve for x
    x = 18,143,807,283.84/155,935.04
  6. Step 6: Final answer
    x = 116,354.91

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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.