Home / 124,223.10-186,334.65-86,703.90

Finding the Fourth Proportional to 124,223.10, 186,334.65 and 86,703.90

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Solution

The fourth proportional to 124,223.10, 186,334.65 and 86,703.90 is: 130,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,223.10 : 186,334.65 = 86,703.90 : x
  2. Step 2: Convert to fraction form
    124,223.10/186,334.65 = 86,703.90/x
  3. Step 3: Cross multiply
    124,223.10x = 186,334.65 × 86,703.90
  4. Step 4: Simplify right side
    124,223.10x = 16,155,940,860.14
  5. Step 5: Solve for x
    x = 16,155,940,860.14/124,223.10
  6. Step 6: Final answer
    x = 130,055.85

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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.