Home / 134,316.81-185,336.64-77,717.25

Finding the Fourth Proportional to 134,316.81, 185,336.64 and 77,717.25

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Solution

The fourth proportional to 134,316.81, 185,336.64 and 77,717.25 is: 107,237.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,316.81 : 185,336.64 = 77,717.25 : x
  2. Step 2: Convert to fraction form
    134,316.81/185,336.64 = 77,717.25/x
  3. Step 3: Cross multiply
    134,316.81x = 185,336.64 × 77,717.25
  4. Step 4: Simplify right side
    134,316.81x = 14,403,853,985.04
  5. Step 5: Solve for x
    x = 14,403,853,985.04/134,316.81
  6. Step 6: Final answer
    x = 107,237.91

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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.