Home / 150,829.77-208,136.95-86,300.26

Finding the Fourth Proportional to 150,829.77, 208,136.95 and 86,300.26

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Solution

The fourth proportional to 150,829.77, 208,136.95 and 86,300.26 is: 119,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,829.77 : 208,136.95 = 86,300.26 : x
  2. Step 2: Convert to fraction form
    150,829.77/208,136.95 = 86,300.26/x
  3. Step 3: Cross multiply
    150,829.77x = 208,136.95 × 86,300.26
  4. Step 4: Simplify right side
    150,829.77x = 17,962,272,900.61
  5. Step 5: Solve for x
    x = 17,962,272,900.61/150,829.77
  6. Step 6: Final answer
    x = 119,089.71

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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.