Home / 103,731.39-143,152.16-63,444.42

Finding the Fourth Proportional to 103,731.39, 143,152.16 and 63,444.42

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Solution

The fourth proportional to 103,731.39, 143,152.16 and 63,444.42 is: 87,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,731.39 : 143,152.16 = 63,444.42 : x
  2. Step 2: Convert to fraction form
    103,731.39/143,152.16 = 63,444.42/x
  3. Step 3: Cross multiply
    103,731.39x = 143,152.16 × 63,444.42
  4. Step 4: Simplify right side
    103,731.39x = 9,082,205,445.73
  5. Step 5: Solve for x
    x = 9,082,205,445.73/103,731.39
  6. Step 6: Final answer
    x = 87,555.03

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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.