Home / 134,269.86-185,278.05-77,670.66

Finding the Fourth Proportional to 134,269.86, 185,278.05 and 77,670.66

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Solution

The fourth proportional to 134,269.86, 185,278.05 and 77,670.66 is: 107,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,269.86 : 185,278.05 = 77,670.66 : x
  2. Step 2: Convert to fraction form
    134,269.86/185,278.05 = 77,670.66/x
  3. Step 3: Cross multiply
    134,269.86x = 185,278.05 × 77,670.66
  4. Step 4: Simplify right side
    134,269.86x = 14,390,668,427.01
  5. Step 5: Solve for x
    x = 14,390,668,427.01/134,269.86
  6. Step 6: Final answer
    x = 107,177.21

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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.