Home / 124,868.21-172,314.29-76,488.53

Finding the Fourth Proportional to 124,868.21, 172,314.29 and 76,488.53

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Solution

The fourth proportional to 124,868.21, 172,314.29 and 76,488.53 is: 105,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,868.21 : 172,314.29 = 76,488.53 : x
  2. Step 2: Convert to fraction form
    124,868.21/172,314.29 = 76,488.53/x
  3. Step 3: Cross multiply
    124,868.21x = 172,314.29 × 76,488.53
  4. Step 4: Simplify right side
    124,868.21x = 13,180,066,357.65
  5. Step 5: Solve for x
    x = 13,180,066,357.65/124,868.21
  6. Step 6: Final answer
    x = 105,551.82

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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.