Home / 134,663.04-185,834.52-78,106.68

Finding the Fourth Proportional to 134,663.04, 185,834.52 and 78,106.68

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Solution

The fourth proportional to 134,663.04, 185,834.52 and 78,106.68 is: 107,786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,663.04 : 185,834.52 = 78,106.68 : x
  2. Step 2: Convert to fraction form
    134,663.04/185,834.52 = 78,106.68/x
  3. Step 3: Cross multiply
    134,663.04x = 185,834.52 × 78,106.68
  4. Step 4: Simplify right side
    134,663.04x = 14,514,917,386.59
  5. Step 5: Solve for x
    x = 14,514,917,386.59/134,663.04
  6. Step 6: Final answer
    x = 107,786.94

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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.