Home / 147,534.10-221,301.15-100,878.10

Finding the Fourth Proportional to 147,534.10, 221,301.15 and 100,878.10

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Solution

The fourth proportional to 147,534.10, 221,301.15 and 100,878.10 is: 151,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,534.10 : 221,301.15 = 100,878.10 : x
  2. Step 2: Convert to fraction form
    147,534.10/221,301.15 = 100,878.10/x
  3. Step 3: Cross multiply
    147,534.10x = 221,301.15 × 100,878.10
  4. Step 4: Simplify right side
    147,534.10x = 22,324,439,539.82
  5. Step 5: Solve for x
    x = 22,324,439,539.82/147,534.10
  6. Step 6: Final answer
    x = 151,317.15

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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.