Home / 145,823.01-201,235.79-78,755.01

Finding the Fourth Proportional to 145,823.01, 201,235.79 and 78,755.01

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Solution

The fourth proportional to 145,823.01, 201,235.79 and 78,755.01 is: 108,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,823.01 : 201,235.79 = 78,755.01 : x
  2. Step 2: Convert to fraction form
    145,823.01/201,235.79 = 78,755.01/x
  3. Step 3: Cross multiply
    145,823.01x = 201,235.79 × 78,755.01
  4. Step 4: Simplify right side
    145,823.01x = 15,848,326,260.03
  5. Step 5: Solve for x
    x = 15,848,326,260.03/145,823.01
  6. Step 6: Final answer
    x = 108,681.93

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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.