Home / 134,666.04-185,838.66-78,109.68

Finding the Fourth Proportional to 134,666.04, 185,838.66 and 78,109.68

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Solution

The fourth proportional to 134,666.04, 185,838.66 and 78,109.68 is: 107,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,666.04 : 185,838.66 = 78,109.68 : x
  2. Step 2: Convert to fraction form
    134,666.04/185,838.66 = 78,109.68/x
  3. Step 3: Cross multiply
    134,666.04x = 185,838.66 × 78,109.68
  4. Step 4: Simplify right side
    134,666.04x = 14,515,798,264.23
  5. Step 5: Solve for x
    x = 14,515,798,264.23/134,666.04
  6. Step 6: Final answer
    x = 107,791.08

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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.