Home / 148,649.06-205,134.63-80,664.32

Finding the Fourth Proportional to 148,649.06, 205,134.63 and 80,664.32

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Solution

The fourth proportional to 148,649.06, 205,134.63 and 80,664.32 is: 111,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,649.06 : 205,134.63 = 80,664.32 : x
  2. Step 2: Convert to fraction form
    148,649.06/205,134.63 = 80,664.32/x
  3. Step 3: Cross multiply
    148,649.06x = 205,134.63 × 80,664.32
  4. Step 4: Simplify right side
    148,649.06x = 16,547,045,437.40
  5. Step 5: Solve for x
    x = 16,547,045,437.40/148,649.06
  6. Step 6: Final answer
    x = 111,316.18

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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.