Home / 141,485.76-195,255.54-77,828.40

Finding the Fourth Proportional to 141,485.76, 195,255.54 and 77,828.40

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Solution

The fourth proportional to 141,485.76, 195,255.54 and 77,828.40 is: 107,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,485.76 : 195,255.54 = 77,828.40 : x
  2. Step 2: Convert to fraction form
    141,485.76/195,255.54 = 77,828.40/x
  3. Step 3: Cross multiply
    141,485.76x = 195,255.54 × 77,828.40
  4. Step 4: Simplify right side
    141,485.76x = 15,196,426,269.34
  5. Step 5: Solve for x
    x = 15,196,426,269.34/141,485.76
  6. Step 6: Final answer
    x = 107,406.05

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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.