Home / 103,437.41-142,759.13-63,174.33

Finding the Fourth Proportional to 103,437.41, 142,759.13 and 63,174.33

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Solution

The fourth proportional to 103,437.41, 142,759.13 and 63,174.33 is: 87,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,437.41 : 142,759.13 = 63,174.33 : x
  2. Step 2: Convert to fraction form
    103,437.41/142,759.13 = 63,174.33/x
  3. Step 3: Cross multiply
    103,437.41x = 142,759.13 × 63,174.33
  4. Step 4: Simplify right side
    103,437.41x = 9,018,712,073.26
  5. Step 5: Solve for x
    x = 9,018,712,073.26/103,437.41
  6. Step 6: Final answer
    x = 87,190.05

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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.