Home / 101,008.08-139,236.84-65,152.22

Finding the Fourth Proportional to 101,008.08, 139,236.84 and 65,152.22

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Solution

The fourth proportional to 101,008.08, 139,236.84 and 65,152.22 is: 89,810.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,008.08 : 139,236.84 = 65,152.22 : x
  2. Step 2: Convert to fraction form
    101,008.08/139,236.84 = 65,152.22/x
  3. Step 3: Cross multiply
    101,008.08x = 139,236.84 × 65,152.22
  4. Step 4: Simplify right side
    101,008.08x = 9,071,588,535.60
  5. Step 5: Solve for x
    x = 9,071,588,535.60/101,008.08
  6. Step 6: Final answer
    x = 89,810.52

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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.