Home / 147,678.84-221,507.54-57,704.64

Finding the Fourth Proportional to 147,678.84, 221,507.54 and 57,704.64

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Solution

The fourth proportional to 147,678.84, 221,507.54 and 57,704.64 is: 86,552.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,678.84 : 221,507.54 = 57,704.64 : x
  2. Step 2: Convert to fraction form
    147,678.84/221,507.54 = 57,704.64/x
  3. Step 3: Cross multiply
    147,678.84x = 221,507.54 × 57,704.64
  4. Step 4: Simplify right side
    147,678.84x = 12,782,012,852.99
  5. Step 5: Solve for x
    x = 12,782,012,852.99/147,678.84
  6. Step 6: Final answer
    x = 86,552.77

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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.