Home / 145,910.04-201,431.97-103,569.72

Finding the Fourth Proportional to 145,910.04, 201,431.97 and 103,569.72

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Solution

The fourth proportional to 145,910.04, 201,431.97 and 103,569.72 is: 142,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,910.04 : 201,431.97 = 103,569.72 : x
  2. Step 2: Convert to fraction form
    145,910.04/201,431.97 = 103,569.72/x
  3. Step 3: Cross multiply
    145,910.04x = 201,431.97 × 103,569.72
  4. Step 4: Simplify right side
    145,910.04x = 20,862,252,731.95
  5. Step 5: Solve for x
    x = 20,862,252,731.95/145,910.04
  6. Step 6: Final answer
    x = 142,980.24

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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.