Home / 140,186.98-210,280.44-77,406.28

Finding the Fourth Proportional to 140,186.98, 210,280.44 and 77,406.28

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Solution

The fourth proportional to 140,186.98, 210,280.44 and 77,406.28 is: 116,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,186.98 : 210,280.44 = 77,406.28 : x
  2. Step 2: Convert to fraction form
    140,186.98/210,280.44 = 77,406.28/x
  3. Step 3: Cross multiply
    140,186.98x = 210,280.44 × 77,406.28
  4. Step 4: Simplify right side
    140,186.98x = 16,277,026,617.16
  5. Step 5: Solve for x
    x = 16,277,026,617.16/140,186.98
  6. Step 6: Final answer
    x = 116,109.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.