Home / 100,243.40-150,266.68-64,699.18

Finding the Fourth Proportional to 100,243.40, 150,266.68 and 64,699.18

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Solution

The fourth proportional to 100,243.40, 150,266.68 and 64,699.18 is: 96,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,243.40 : 150,266.68 = 64,699.18 : x
  2. Step 2: Convert to fraction form
    100,243.40/150,266.68 = 64,699.18/x
  3. Step 3: Cross multiply
    100,243.40x = 150,266.68 × 64,699.18
  4. Step 4: Simplify right side
    100,243.40x = 9,722,130,439.91
  5. Step 5: Solve for x
    x = 9,722,130,439.91/100,243.40
  6. Step 6: Final answer
    x = 96,985.25

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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.