Home / 101,261.13-139,740.42-56,549.13

Finding the Fourth Proportional to 101,261.13, 139,740.42 and 56,549.13

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Solution

The fourth proportional to 101,261.13, 139,740.42 and 56,549.13 is: 78,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,261.13 : 139,740.42 = 56,549.13 : x
  2. Step 2: Convert to fraction form
    101,261.13/139,740.42 = 56,549.13/x
  3. Step 3: Cross multiply
    101,261.13x = 139,740.42 × 56,549.13
  4. Step 4: Simplify right side
    101,261.13x = 7,902,199,176.83
  5. Step 5: Solve for x
    x = 7,902,199,176.83/101,261.13
  6. Step 6: Final answer
    x = 78,037.83

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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.