Home / 140,186.75-210,148.88-77,726.03

Finding the Fourth Proportional to 140,186.75, 210,148.88 and 77,726.03

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Solution

The fourth proportional to 140,186.75, 210,148.88 and 77,726.03 is: 116,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,186.75 : 210,148.88 = 77,726.03 : x
  2. Step 2: Convert to fraction form
    140,186.75/210,148.88 = 77,726.03/x
  3. Step 3: Cross multiply
    140,186.75x = 210,148.88 × 77,726.03
  4. Step 4: Simplify right side
    140,186.75x = 16,334,038,331.27
  5. Step 5: Solve for x
    x = 16,334,038,331.27/140,186.75
  6. Step 6: Final answer
    x = 116,516.28

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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.