Home / 137,703.98-190,016.07-77,262.05

Finding the Fourth Proportional to 137,703.98, 190,016.07 and 77,262.05

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Solution

The fourth proportional to 137,703.98, 190,016.07 and 77,262.05 is: 106,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,703.98 : 190,016.07 = 77,262.05 : x
  2. Step 2: Convert to fraction form
    137,703.98/190,016.07 = 77,262.05/x
  3. Step 3: Cross multiply
    137,703.98x = 190,016.07 × 77,262.05
  4. Step 4: Simplify right side
    137,703.98x = 14,681,031,101.14
  5. Step 5: Solve for x
    x = 14,681,031,101.14/137,703.98
  6. Step 6: Final answer
    x = 106,612.98

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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.