Home / 101,505.02-140,077.20-56,186.16

Finding the Fourth Proportional to 101,505.02, 140,077.20 and 56,186.16

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Solution

The fourth proportional to 101,505.02, 140,077.20 and 56,186.16 is: 77,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,505.02 : 140,077.20 = 56,186.16 : x
  2. Step 2: Convert to fraction form
    101,505.02/140,077.20 = 56,186.16/x
  3. Step 3: Cross multiply
    101,505.02x = 140,077.20 × 56,186.16
  4. Step 4: Simplify right side
    101,505.02x = 7,870,399,971.55
  5. Step 5: Solve for x
    x = 7,870,399,971.55/101,505.02
  6. Step 6: Final answer
    x = 77,537.05

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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.