Home / 140,637.28-210,921.36-40,776.16

Finding the Fourth Proportional to 140,637.28, 210,921.36 and 40,776.16

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Solution

The fourth proportional to 140,637.28, 210,921.36 and 40,776.16 is: 61,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,637.28 : 210,921.36 = 40,776.16 : x
  2. Step 2: Convert to fraction form
    140,637.28/210,921.36 = 40,776.16/x
  3. Step 3: Cross multiply
    140,637.28x = 210,921.36 × 40,776.16
  4. Step 4: Simplify right side
    140,637.28x = 8,600,563,122.78
  5. Step 5: Solve for x
    x = 8,600,563,122.78/140,637.28
  6. Step 6: Final answer
    x = 61,154.22

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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.