Home / 100,103.63-138,129.33-59,808.83

Finding the Fourth Proportional to 100,103.63, 138,129.33 and 59,808.83

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Solution

The fourth proportional to 100,103.63, 138,129.33 and 59,808.83 is: 82,528.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,103.63 : 138,129.33 = 59,808.83 : x
  2. Step 2: Convert to fraction form
    100,103.63/138,129.33 = 59,808.83/x
  3. Step 3: Cross multiply
    100,103.63x = 138,129.33 × 59,808.83
  4. Step 4: Simplify right side
    100,103.63x = 8,261,352,925.34
  5. Step 5: Solve for x
    x = 8,261,352,925.34/100,103.63
  6. Step 6: Final answer
    x = 82,528.01

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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.