Home / 150,721.74-208,017.63-90,294.93

Finding the Fourth Proportional to 150,721.74, 208,017.63 and 90,294.93

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Solution

The fourth proportional to 150,721.74, 208,017.63 and 90,294.93 is: 124,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,721.74 : 208,017.63 = 90,294.93 : x
  2. Step 2: Convert to fraction form
    150,721.74/208,017.63 = 90,294.93/x
  3. Step 3: Cross multiply
    150,721.74x = 208,017.63 × 90,294.93
  4. Step 4: Simplify right side
    150,721.74x = 18,782,937,339.62
  5. Step 5: Solve for x
    x = 18,782,937,339.62/150,721.74
  6. Step 6: Final answer
    x = 124,619.96

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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.