Home / 138,862.89-208,302.44-39,030.86

Finding the Fourth Proportional to 138,862.89, 208,302.44 and 39,030.86

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Solution

The fourth proportional to 138,862.89, 208,302.44 and 39,030.86 is: 58,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,862.89 : 208,302.44 = 39,030.86 : x
  2. Step 2: Convert to fraction form
    138,862.89/208,302.44 = 39,030.86/x
  3. Step 3: Cross multiply
    138,862.89x = 208,302.44 × 39,030.86
  4. Step 4: Simplify right side
    138,862.89x = 8,130,223,698.90
  5. Step 5: Solve for x
    x = 8,130,223,698.90/138,862.89
  6. Step 6: Final answer
    x = 58,548.57

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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.