Home / 134,400.19-185,395.11-84,011.71

Finding the Fourth Proportional to 134,400.19, 185,395.11 and 84,011.71

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Solution

The fourth proportional to 134,400.19, 185,395.11 and 84,011.71 is: 115,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,400.19 : 185,395.11 = 84,011.71 : x
  2. Step 2: Convert to fraction form
    134,400.19/185,395.11 = 84,011.71/x
  3. Step 3: Cross multiply
    134,400.19x = 185,395.11 × 84,011.71
  4. Step 4: Simplify right side
    134,400.19x = 15,575,360,216.74
  5. Step 5: Solve for x
    x = 15,575,360,216.74/134,400.19
  6. Step 6: Final answer
    x = 115,887.93

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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.