Home / 134,407.20-185,479.44-77,817.12

Finding the Fourth Proportional to 134,407.20, 185,479.44 and 77,817.12

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Solution

The fourth proportional to 134,407.20, 185,479.44 and 77,817.12 is: 107,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,407.20 : 185,479.44 = 77,817.12 : x
  2. Step 2: Convert to fraction form
    134,407.20/185,479.44 = 77,817.12/x
  3. Step 3: Cross multiply
    134,407.20x = 185,479.44 × 77,817.12
  4. Step 4: Simplify right side
    134,407.20x = 14,433,475,840.01
  5. Step 5: Solve for x
    x = 14,433,475,840.01/134,407.20
  6. Step 6: Final answer
    x = 107,386.18

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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.