Home / 101,426.24-139,962.40-56,101.44

Finding the Fourth Proportional to 101,426.24, 139,962.40 and 56,101.44

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Solution

The fourth proportional to 101,426.24, 139,962.40 and 56,101.44 is: 77,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,426.24 : 139,962.40 = 56,101.44 : x
  2. Step 2: Convert to fraction form
    101,426.24/139,962.40 = 56,101.44/x
  3. Step 3: Cross multiply
    101,426.24x = 139,962.40 × 56,101.44
  4. Step 4: Simplify right side
    101,426.24x = 7,852,092,185.86
  5. Step 5: Solve for x
    x = 7,852,092,185.86/101,426.24
  6. Step 6: Final answer
    x = 77,416.77

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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.