Home / 123,835.51-170,893.65-70,130.98

Finding the Fourth Proportional to 123,835.51, 170,893.65 and 70,130.98

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Solution

The fourth proportional to 123,835.51, 170,893.65 and 70,130.98 is: 96,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,835.51 : 170,893.65 = 70,130.98 : x
  2. Step 2: Convert to fraction form
    123,835.51/170,893.65 = 70,130.98/x
  3. Step 3: Cross multiply
    123,835.51x = 170,893.65 × 70,130.98
  4. Step 4: Simplify right side
    123,835.51x = 11,984,938,986.03
  5. Step 5: Solve for x
    x = 11,984,938,986.03/123,835.51
  6. Step 6: Final answer
    x = 96,781.12

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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.