Home / 103,987.13-143,502.24-56,240.46

Finding the Fourth Proportional to 103,987.13, 143,502.24 and 56,240.46

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Solution

The fourth proportional to 103,987.13, 143,502.24 and 56,240.46 is: 77,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,987.13 : 143,502.24 = 56,240.46 : x
  2. Step 2: Convert to fraction form
    103,987.13/143,502.24 = 56,240.46/x
  3. Step 3: Cross multiply
    103,987.13x = 143,502.24 × 56,240.46
  4. Step 4: Simplify right side
    103,987.13x = 8,070,631,988.63
  5. Step 5: Solve for x
    x = 8,070,631,988.63/103,987.13
  6. Step 6: Final answer
    x = 77,611.84

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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.