Home / 101,971.07-140,719.95-56,653.24

Finding the Fourth Proportional to 101,971.07, 140,719.95 and 56,653.24

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Solution

The fourth proportional to 101,971.07, 140,719.95 and 56,653.24 is: 78,181.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,971.07 : 140,719.95 = 56,653.24 : x
  2. Step 2: Convert to fraction form
    101,971.07/140,719.95 = 56,653.24/x
  3. Step 3: Cross multiply
    101,971.07x = 140,719.95 × 56,653.24
  4. Step 4: Simplify right side
    101,971.07x = 7,972,240,113.27
  5. Step 5: Solve for x
    x = 7,972,240,113.27/101,971.07
  6. Step 6: Final answer
    x = 78,181.39

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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.