Home / 147,155.40-220,560.28-68,102.64

Finding the Fourth Proportional to 147,155.40, 220,560.28 and 68,102.64

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Solution

The fourth proportional to 147,155.40, 220,560.28 and 68,102.64 is: 102,073.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,155.40 : 220,560.28 = 68,102.64 : x
  2. Step 2: Convert to fraction form
    147,155.40/220,560.28 = 68,102.64/x
  3. Step 3: Cross multiply
    147,155.40x = 220,560.28 × 68,102.64
  4. Step 4: Simplify right side
    147,155.40x = 15,020,737,347.14
  5. Step 5: Solve for x
    x = 15,020,737,347.14/147,155.40
  6. Step 6: Final answer
    x = 102,073.98

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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.