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Finding the Fourth Proportional to 140,528.08, 210,792.48 and 57,422.08

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Solution

The fourth proportional to 140,528.08, 210,792.48 and 57,422.08 is: 86,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,528.08 : 210,792.48 = 57,422.08 : x
  2. Step 2: Convert to fraction form
    140,528.08/210,792.48 = 57,422.08/x
  3. Step 3: Cross multiply
    140,528.08x = 210,792.48 × 57,422.08
  4. Step 4: Simplify right side
    140,528.08x = 12,104,142,649.96
  5. Step 5: Solve for x
    x = 12,104,142,649.96/140,528.08
  6. Step 6: Final answer
    x = 86,133.27

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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.