Home / 137,980.04-190,407.06-77,553.32

Finding the Fourth Proportional to 137,980.04, 190,407.06 and 77,553.32

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Solution

The fourth proportional to 137,980.04, 190,407.06 and 77,553.32 is: 107,020.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,980.04 : 190,407.06 = 77,553.32 : x
  2. Step 2: Convert to fraction form
    137,980.04/190,407.06 = 77,553.32/x
  3. Step 3: Cross multiply
    137,980.04x = 190,407.06 × 77,553.32
  4. Step 4: Simplify right side
    137,980.04x = 14,766,699,654.44
  5. Step 5: Solve for x
    x = 14,766,699,654.44/137,980.04
  6. Step 6: Final answer
    x = 107,020.55

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1.5x scale

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.