Home / 137,697.37-190,024.19-77,281.09

Finding the Fourth Proportional to 137,697.37, 190,024.19 and 77,281.09

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Solution

The fourth proportional to 137,697.37, 190,024.19 and 77,281.09 is: 106,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,697.37 : 190,024.19 = 77,281.09 : x
  2. Step 2: Convert to fraction form
    137,697.37/190,024.19 = 77,281.09/x
  3. Step 3: Cross multiply
    137,697.37x = 190,024.19 × 77,281.09
  4. Step 4: Simplify right side
    137,697.37x = 14,685,276,143.16
  5. Step 5: Solve for x
    x = 14,685,276,143.16/137,697.37
  6. Step 6: Final answer
    x = 106,648.92

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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.