Home / 107,235.36-147,988.74-64,785.66

Finding the Fourth Proportional to 107,235.36, 147,988.74 and 64,785.66

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Solution

The fourth proportional to 107,235.36, 147,988.74 and 64,785.66 is: 89,406.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,235.36 : 147,988.74 = 64,785.66 : x
  2. Step 2: Convert to fraction form
    107,235.36/147,988.74 = 64,785.66/x
  3. Step 3: Cross multiply
    107,235.36x = 147,988.74 × 64,785.66
  4. Step 4: Simplify right side
    107,235.36x = 9,587,548,193.47
  5. Step 5: Solve for x
    x = 9,587,548,193.47/107,235.36
  6. Step 6: Final answer
    x = 89,406.59

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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.