Home / 134,620.26-185,784.74-77,278.16

Finding the Fourth Proportional to 134,620.26, 185,784.74 and 77,278.16

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Solution

The fourth proportional to 134,620.26, 185,784.74 and 77,278.16 is: 106,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,620.26 : 185,784.74 = 77,278.16 : x
  2. Step 2: Convert to fraction form
    134,620.26/185,784.74 = 77,278.16/x
  3. Step 3: Cross multiply
    134,620.26x = 185,784.74 × 77,278.16
  4. Step 4: Simplify right side
    134,620.26x = 14,357,101,547.96
  5. Step 5: Solve for x
    x = 14,357,101,547.96/134,620.26
  6. Step 6: Final answer
    x = 106,648.89

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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.