Home / 107,015.00-147,588.55-66,686.72

Finding the Fourth Proportional to 107,015.00, 147,588.55 and 66,686.72

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Solution

The fourth proportional to 107,015.00, 147,588.55 and 66,686.72 is: 91,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,015.00 : 147,588.55 = 66,686.72 : x
  2. Step 2: Convert to fraction form
    107,015.00/147,588.55 = 66,686.72/x
  3. Step 3: Cross multiply
    107,015.00x = 147,588.55 × 66,686.72
  4. Step 4: Simplify right side
    107,015.00x = 9,842,195,404.40
  5. Step 5: Solve for x
    x = 9,842,195,404.40/107,015.00
  6. Step 6: Final answer
    x = 91,970.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.