Home / 140,157.87-210,264.50-51,412.20

Finding the Fourth Proportional to 140,157.87, 210,264.50 and 51,412.20

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Solution

The fourth proportional to 140,157.87, 210,264.50 and 51,412.20 is: 77,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,157.87 : 210,264.50 = 51,412.20 : x
  2. Step 2: Convert to fraction form
    140,157.87/210,264.50 = 51,412.20/x
  3. Step 3: Cross multiply
    140,157.87x = 210,264.50 × 51,412.20
  4. Step 4: Simplify right side
    140,157.87x = 10,810,160,526.90
  5. Step 5: Solve for x
    x = 10,810,160,526.90/140,157.87
  6. Step 6: Final answer
    x = 77,128.46

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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.