Home / 145,905.09-201,314.73-88,543.11

Finding the Fourth Proportional to 145,905.09, 201,314.73 and 88,543.11

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Solution

The fourth proportional to 145,905.09, 201,314.73 and 88,543.11 is: 122,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,905.09 : 201,314.73 = 88,543.11 : x
  2. Step 2: Convert to fraction form
    145,905.09/201,314.73 = 88,543.11/x
  3. Step 3: Cross multiply
    145,905.09x = 201,314.73 × 88,543.11
  4. Step 4: Simplify right side
    145,905.09x = 17,825,032,283.01
  5. Step 5: Solve for x
    x = 17,825,032,283.01/145,905.09
  6. Step 6: Final answer
    x = 122,168.68

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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.