Home / 101,637.31-140,257.62-56,315.13

Finding the Fourth Proportional to 101,637.31, 140,257.62 and 56,315.13

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Solution

The fourth proportional to 101,637.31, 140,257.62 and 56,315.13 is: 77,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,637.31 : 140,257.62 = 56,315.13 : x
  2. Step 2: Convert to fraction form
    101,637.31/140,257.62 = 56,315.13/x
  3. Step 3: Cross multiply
    101,637.31x = 140,257.62 × 56,315.13
  4. Step 4: Simplify right side
    101,637.31x = 7,898,626,103.79
  5. Step 5: Solve for x
    x = 7,898,626,103.79/101,637.31
  6. Step 6: Final answer
    x = 77,713.84

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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.