Home / 147,036.63-220,277.66-86,885.76

Finding the Fourth Proportional to 147,036.63, 220,277.66 and 86,885.76

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Solution

The fourth proportional to 147,036.63, 220,277.66 and 86,885.76 is: 130,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,036.63 : 220,277.66 = 86,885.76 : x
  2. Step 2: Convert to fraction form
    147,036.63/220,277.66 = 86,885.76/x
  3. Step 3: Cross multiply
    147,036.63x = 220,277.66 × 86,885.76
  4. Step 4: Simplify right side
    147,036.63x = 19,138,991,465.69
  5. Step 5: Solve for x
    x = 19,138,991,465.69/147,036.63
  6. Step 6: Final answer
    x = 130,164.79

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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.