Home / 150,315.02-207,387.78-86,644.16

Finding the Fourth Proportional to 150,315.02, 207,387.78 and 86,644.16

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Solution

The fourth proportional to 150,315.02, 207,387.78 and 86,644.16 is: 119,541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,315.02 : 207,387.78 = 86,644.16 : x
  2. Step 2: Convert to fraction form
    150,315.02/207,387.78 = 86,644.16/x
  3. Step 3: Cross multiply
    150,315.02x = 207,387.78 × 86,644.16
  4. Step 4: Simplify right side
    150,315.02x = 17,968,939,992.36
  5. Step 5: Solve for x
    x = 17,968,939,992.36/150,315.02
  6. Step 6: Final answer
    x = 119,541.88

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1.5x scale

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.