Home / 152,621.72-210,614.02-84,637.60

Finding the Fourth Proportional to 152,621.72, 210,614.02 and 84,637.60

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Solution

The fourth proportional to 152,621.72, 210,614.02 and 84,637.60 is: 116,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,621.72 : 210,614.02 = 84,637.60 : x
  2. Step 2: Convert to fraction form
    152,621.72/210,614.02 = 84,637.60/x
  3. Step 3: Cross multiply
    152,621.72x = 210,614.02 × 84,637.60
  4. Step 4: Simplify right side
    152,621.72x = 17,825,865,179.15
  5. Step 5: Solve for x
    x = 17,825,865,179.15/152,621.72
  6. Step 6: Final answer
    x = 116,797.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.