Home / 103,622.10-155,663.55-100,857.30

Finding the Fourth Proportional to 103,622.10, 155,663.55 and 100,857.30

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Solution

The fourth proportional to 103,622.10, 155,663.55 and 100,857.30 is: 151,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,622.10 : 155,663.55 = 100,857.30 : x
  2. Step 2: Convert to fraction form
    103,622.10/155,663.55 = 100,857.30/x
  3. Step 3: Cross multiply
    103,622.10x = 155,663.55 × 100,857.30
  4. Step 4: Simplify right side
    103,622.10x = 15,699,805,361.42
  5. Step 5: Solve for x
    x = 15,699,805,361.42/103,622.10
  6. Step 6: Final answer
    x = 151,510.20

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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.