Home / 150,746.30-208,033.17-86,221.50

Finding the Fourth Proportional to 150,746.30, 208,033.17 and 86,221.50

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Solution

The fourth proportional to 150,746.30, 208,033.17 and 86,221.50 is: 118,987.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,746.30 : 208,033.17 = 86,221.50 : x
  2. Step 2: Convert to fraction form
    150,746.30/208,033.17 = 86,221.50/x
  3. Step 3: Cross multiply
    150,746.30x = 208,033.17 × 86,221.50
  4. Step 4: Simplify right side
    150,746.30x = 17,936,931,967.16
  5. Step 5: Solve for x
    x = 17,936,931,967.16/150,746.30
  6. Step 6: Final answer
    x = 118,987.54

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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.