Home / 151,435.08-208,970.42-90,969.93

Finding the Fourth Proportional to 151,435.08, 208,970.42 and 90,969.93

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Solution

The fourth proportional to 151,435.08, 208,970.42 and 90,969.93 is: 125,532.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,435.08 : 208,970.42 = 90,969.93 : x
  2. Step 2: Convert to fraction form
    151,435.08/208,970.42 = 90,969.93/x
  3. Step 3: Cross multiply
    151,435.08x = 208,970.42 × 90,969.93
  4. Step 4: Simplify right side
    151,435.08x = 19,010,024,024.62
  5. Step 5: Solve for x
    x = 19,010,024,024.62/151,435.08
  6. Step 6: Final answer
    x = 125,532.50

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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.