Home / 136,421.51-204,570.30-57,492.68

Finding the Fourth Proportional to 136,421.51, 204,570.30 and 57,492.68

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Solution

The fourth proportional to 136,421.51, 204,570.30 and 57,492.68 is: 86,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,421.51 : 204,570.30 = 57,492.68 : x
  2. Step 2: Convert to fraction form
    136,421.51/204,570.30 = 57,492.68/x
  3. Step 3: Cross multiply
    136,421.51x = 204,570.30 × 57,492.68
  4. Step 4: Simplify right side
    136,421.51x = 11,761,294,795.40
  5. Step 5: Solve for x
    x = 11,761,294,795.40/136,421.51
  6. Step 6: Final answer
    x = 86,212.91

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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.