Home / 115,209.84-172,814.51-30,970.00

Finding the Fourth Proportional to 115,209.84, 172,814.51 and 30,970.00

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Solution

The fourth proportional to 115,209.84, 172,814.51 and 30,970.00 is: 46,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,209.84 : 172,814.51 = 30,970.00 : x
  2. Step 2: Convert to fraction form
    115,209.84/172,814.51 = 30,970.00/x
  3. Step 3: Cross multiply
    115,209.84x = 172,814.51 × 30,970.00
  4. Step 4: Simplify right side
    115,209.84x = 5,352,064,696.06
  5. Step 5: Solve for x
    x = 5,352,064,696.06/115,209.84
  6. Step 6: Final answer
    x = 46,454.93

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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.