Home / 134,631.12-185,794.68-77,275.36

Finding the Fourth Proportional to 134,631.12, 185,794.68 and 77,275.36

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Solution

The fourth proportional to 134,631.12, 185,794.68 and 77,275.36 is: 106,642.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,631.12 : 185,794.68 = 77,275.36 : x
  2. Step 2: Convert to fraction form
    134,631.12/185,794.68 = 77,275.36/x
  3. Step 3: Cross multiply
    134,631.12x = 185,794.68 × 77,275.36
  4. Step 4: Simplify right side
    134,631.12x = 14,357,350,783.08
  5. Step 5: Solve for x
    x = 14,357,350,783.08/134,631.12
  6. Step 6: Final answer
    x = 106,642.14

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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.