Home / 103,987.33-143,502.60-56,240.62

Finding the Fourth Proportional to 103,987.33, 143,502.60 and 56,240.62

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Solution

The fourth proportional to 103,987.33, 143,502.60 and 56,240.62 is: 77,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,987.33 : 143,502.60 = 56,240.62 : x
  2. Step 2: Convert to fraction form
    103,987.33/143,502.60 = 56,240.62/x
  3. Step 3: Cross multiply
    103,987.33x = 143,502.60 × 56,240.62
  4. Step 4: Simplify right side
    103,987.33x = 8,070,675,195.61
  5. Step 5: Solve for x
    x = 8,070,675,195.61/103,987.33
  6. Step 6: Final answer
    x = 77,612.10

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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.